The warnings, precautions, and instructions discussed in this manual cannot cover all possible conditions
and situations that may occur. The operator must understand that common sense and caution are factors,
which cannot be built into this product, but must be supplied by the operator.
Assembly / Installation Precautions
1. Assemble only according to these instructions.
Improper assembly can create hazards.
6. Do not assemble when tired or when under the
influence of alcohol, drugs or medication.
SAFETYFRAMEMAINTENANCEFOUNDATION
2. Wear ANSI-approved safety goggles and
heavy-duty work gloves during assembly.
3. This unit contains pieces with sharp edges.
The machined edges of the aluminum parts
and the ends of the panel clips may be sharp.
Handle all parts carefully.
4. Keep assembly area clean and well lit.
5. Keep bystanders out of the area during assembly.
Use / Service Precautions
1. This product is not a toy. Do not allow
children to play in or climb on this product.
Although this greenhouse does include some caps,
there are still some exposed sharp edges.
In addition, protective covers may fall off in time.
Children must be supervised if
allowed near the greenhouse.
2. SNOW/DEBRIS ACCUMULATION HAZARD.
The heavy weight of accumulated snow or other
debris can cause parts of this greenhouse to buckle
suddenly. Do not allow debris to accumulate on
top of the greenhouse. If snowfall is expected,
place additional supports (not provided) underneath
the Crown (35). NEVER enter a greenhouse
with accumulated debris on top.
7. Product capabilities apply to properly and
completely assembled product only.
8. Locate the Greenhouse on a flat, level, surface.
A concrete foundation is recommended
for a high-quality installation.
9. WARNING: The brass bushings inside the
Rollers of this product contain lead, a chemical
known to the State of California to cause
birth defects (or other reproductive harm).
(California Health & Safety Code § 25249.5, et seq.)
3. Use as intended only.
4. Inspect periodically; replace damaged parts
immediately and do not enter greenhouse
if parts are loose or damaged.
5. For your safety, service and maintenance should
be performed regularly by a qualified technician.
Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this document
including all text under subheadings therein before set up or use of this product.
IMPORTANT–READ THE FOLLOWING CAREFULLY BEFORE PROCEEDING
supported to help prevent property damage and injury in the event of strong winds or
inclement weather. Wind and ground conditions may vary from site to site, and may affect
the practicality and effectiveness of anchoring methods substantially. If you have any
doubt regarding the stability of the foundation you are to use, consult a professional.
Harbor Freight Tools cannot be held responsible for personal injury, damage to the greenhouse,
or other property damage that occurs as a result of improperly anchoring the greenhouse.
1. This foundation will be assembled out of
4 x 4 treated lumber, hardware, and prefabricated
concrete anchors (none provided).
2. Assemble the 4 x 4 pieces in the
dimensions shown in the diagram below.
The wood will need to be trimmed to fit.
Make certain that the assembly is square and level.
The diagonal dimensions, from outside corner
to outside corner, should be 1233/4″ each.
3. Securely assemble the frame together
using proper hardware.
4. Dig a hole for each of the concrete anchors in
the positions shown. The hole should be slightly
oversized and should be deep enough so that the
frame will rest almost on the ground when installed.
5. Carefully place the anchors in the holes,
and place the frame on the anchors.
Use a level on the frame to make sure that
the anchors are sunk to the proper depth.
If any anchors need to be raised, partially fill the
hole under the anchor with sand or gravel.
6. Once the frame is level, secure it to the anchors.
Fill up the holes the rest of the way with
the earth you removed previously.
7. Optional: For convenience you may fill the
frame at this point with a proper fill material,
such as gravel (not included).
8. There are four Floor Plates to position on
the foundation; the Front Floor Plate (17),
the Rear Floor Plate (16), and
two Side Floor Plates (34).
(See Figure G on page 8.)
SAFETYFRAMEMAINTENANCEFOUNDATION
Figure A: Wood Frame Dimensions
9. Match the length of each of the
four Floor Plates (16, 17, 34) with the appropriate
length of each edge of the base.
Place the Front Floor Plate (17) on
the side that the door will face.
NOTE: Position the four Floor Plates (16, 17, 34)
with their outer edges overhanging the outer edges
of the frame, as shown below. Do not secure
the Floor Plates to the Frame at this time.
Figure B: Concrete Anchor Foundation - Cross Section
1. The wood base will be assembled out of 4 x 6
and 2 x 12 treated lumber, hardware (including
galvanized lag bolts/deck screws), and
SAFETYFRAMEMAINTENANCEFOUNDATION
fill material, such as gravel (none provided).
2. Assemble the 2 x 12 pieces in the dimensions
shown in the diagram below. The wood will
need to be trimmed to fit. Make certain that the
assembly is square and level. The diagonal
dimensions, from outside corner to outside corner,
should be 1233/4″ each. Also use a level to
ensure that the base is even. If needed, fill under
sections of the base to make sure it is level.
3. Assemble the 4 x 6 pieces on top of the
base you just assembled, as shown in the
cross section below. Fill the base with the
fill material up to the top of the 4 x 6's.
4. There are four Floor Plates to position on
the foundation; the Front Floor Plate (17),
the Rear Floor Plate (16),
and two Side Floor Plates (34).
(See Figure G on page 8.)
5. Match the length of each of the
four Floor Plates (16, 17, 34) with the appropriate
length of each edge of the base.
Place the Front Floor Plate (17) on
the side that the door will face.
NOTE: Position the four Floor Plates (16, 17, 34)
with their outer edges overhanging the outer edges
of the base, as shown below. Do not secure
1. The greenhouse must be attached to a
wood sill, and not directly to a concrete slab.
Use four4″wideby2″thick wooden boards
(not provided) to construct a sill.
2. Cut the four boards to the proper dimensions shown.
3. Place the four boards to form a
rectangle on a level floor surface.
4. Exact dimensions may vary slightly.
Lay the base components out together,
square them, then take actual measurements.
Both diagonal measurements, from outer corner
to outer corner, should be 1233/4″ each.
5. Secure the boards together at the corners
using wood screws (not provided).
Attaching the Sill to the Concrete Slab
1. A concrete slab foundation upon which the
Greenhouse will be positioned will help to
ensure stability. The slab can be slightly oversize.
2. Drill two 1/4″ holes through each of the four boards.
3. Next, use the two predrilled holes in each board as
a template to mark the points where eight anchor
holes will be drilled in the concrete floor.
Then, temporarily remove the sill.
SAFETYFRAMEMAINTENANCEFOUNDATION
Figure E: Wood Sill Dimensions
5. Move the four boards back to the concrete floor
surface, and align all eight predrilled holes in the four
boards with the eight previously drilled anchor holes.
If necessary, level the boards by inserting stainless
steel shims (sold separately) between the boards and
the concrete floor. Do not exceed 1/2″ shim thickness.
6. Secure the four boards to the concrete floor,
using eight 1/4″ diameter anchor bolts of appropriate
length, eight washers, and eight nuts (not provided).
4. Where previously marked on the
concrete floor, drill all eight 1/4″ diameter,
minimum 4″ deep, anchor holes.
Blow the concrete dust out from the drilled holes.
Positioning the Floor Plates on the Sill
1. There are four Floor Plates to
attach to the sill; the Front Floor Plate (17),
the Rear Floor Plate (16), and two Side Floor
Plates (34).(See Figure G on page 8.)
2. Match the length of each of the
four Floor Plates (16, 17, 34) with the appropriate
length of each of the four foundation boards.
Place the Front Floor Plate (17) on
the side that the door will face.
NOTE: Position the four Floor Plates (16, 17, 34)
with their outer edges overhanging the outer edges
of the sill, as shown below. Do not secure
Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this document
including all text under subheadings therein before set up or use of this product.
1. There are four Corner Studs (1) to be
attached to the four Floor Plates (16, 17, 34).
Attach one Corner Stud (1) on the outside of
each corner. Attach an End Cap (47) to the
top outer corner of each Corner Stud (1).
(Rear)
(Left)
Figure G: Frame Edges
2. Once the four Corner Studs (1) are connected to the
Floor Plates (16, 17, 34), drill three pilot holes 11/2″
through each Floor Plate and into the underlying
wood sill or base. Make sure not to drill into any of
the hardware used earlier. Then, secure the Floor
Plates to the foundation, using three 11/2″ long wood
screws (sold separately) for each Floor Plate.
3. Attach a Side Ceiling Plate (36) flat against the
inside of two Corner Studs (1). Make sure that the
gutter on the Side Ceiling Plate is oriented correctly,
see Figure G inset. At this point, the completed
section of the frame will likely need support.
4. Attach the Rear Ceiling Plate (21) to
the inside of the two Corner Studs (1)
that are over the Rear Floor Plate (16).
Point the Rear Ceiling Plate’s flange inward.
(See Figure G.)
5. Attach the Left and Right Rear Studs (8,9) to
the outside of the Rear Floor Plate (16) and
Rear Ceiling Plate (21). Orient them so that
the ends slope upwards toward the middle
of the greenhouse. (See Figure G.)
Note: The heads of the Bolts (43) fit
into the slot on the back of the Stud,
holding the Bolts in place during assembly.
6. Attach the remaining Side Ceiling Plate (36)
along the other side, flat against the inside of the
Corner Studs (1), with the gutter oriented properly.
8. Attach the Front Crown Beams (2,3)
to the Crown (35) in the same fashion
as the Rear Crown Beams.
9. Attach an End Cap (47) onto the outer end
of each Crown Beam (2-5). Cover the gaps
between the Crown Beams (between 2-3 & 4-5)
with a Peak Cap (54) in each.
10. Attach a Corner Bracket (13) at the top of
each Corner Stud (1) so that the bracket faces
upwards, see diagram below. At the Studs that the
Rear Ceiling Plate (21) is connected to, the Bolt (43)
holding the Ceiling Plate on will need to be removed
temporarily while the Bracket is installed between
the Rear Ceiling Plate and the Corner Stud.
SAFETYFRAMEMAINTENANCEFOUNDATION
7. At the side of the Greenhouse: Attach the
Rear Right and Rear Left Crown Beams (4,5)
to the outside of the Crown (35) with the angled
edges towards the top. See diagram below,
viewed from under the Crown, facing back.
11. With two assistants, lift the Crown Assembly
and place the Crown Beams (2-5) on
top of the Corner Brackets (13).
12. Attach the remaining Side Ceiling Plate (36)
flat against the inside of two Corner Studs (1).
Once again, verify that the gutter on the Side Ceiling
Plate is oriented correctly, see Figure C inset.
At this point, the unit should be more stable.
13. Place the Gutter Caps (48) onto the ends of the
Side Ceiling Plates (36) oriented with a gap in the
bottom to allow water to drain out of the gutters.
IMPORTANT: Assemble all parts marked with an asterisk (*) above with an extra Bolt (43) in the slot.
Figure H: Stud and Brace Locations
1. Attach three Side Vertical Studs (10) to a
Side Floor Plate (34) and a Side Ceiling Plate (36).
Make sure that they are assembled vertically, there
are extra holes for the diagonals. Also, include
extra Bolts in the Studs noted above with asterisks.
Repeat this Step for the remaining Side Floor Plate
and Side Ceiling Plate. (See Figure H.)
2. Attach two Side Diagonal Braces (22) to a Side
Floor Plate (34) and a Side Ceiling Plate (36)
with the flange facing inward. Use the extra
Bolt (43), noted in the caption above, to secure
the center portion of each Diagonal Brace (22).
Repeat this Step for the remaining Side Floor Plate
and Side Ceiling Plate. (See Figure H.)
3. Attach the six Roof Studs (11) between the
Crown (35) and the two Side Ceiling Plates (36).
Include extra Bolts in the four Studs noted
with an asterisk above. (See Figure H.)
4. Slide the Window Support Beams (15) onto the four
Roof Studs (11) that you included extra bolts in,
with the predrilled holes on the underside and
the flat side facing the Crown (35). Use the extra
Bolts (43), to secure the Beam loosely in place.
It will need adjustment when installing the window.
5. Using two Window Screws (45), attach each
Window Stop (18) to the Window Support Beam (15)
with its tab pointing towards the Crown (35).
Both should be on the underside of their
Window Support Beam, inside the greenhouse.
1. Attach the Right and Left Doorway Studs (6,7)
to the Front Right and Left Crown Beams (2,3)
and the Front Floor Plate (17) as shown above.
The cutoff corners on the Studs should be at the
top and should face away from the center of the
greenhouse. (See Figure I and right inset.)
2. Attach the Front Diagonal Stud (25) to
the lower Bolt on the Corner Bracket (13)
and bottom of the Front Floor Plate (17).
The flange should face inside. (See Figure I.)
3. Attach the other Front Diagonal Stud (25)
in the same way on the opposite side.
4. Attach a Front Ceiling Plate (23) to the
Bolt (43) on the Corner Bracket (13) that is
right above the Diagonal-Bracket connection.
Connect the other end to the Left Doorway Stud (7).
Attach the remaining Front Ceiling Plate (23)
between the Corner Bracket (13) and Right
Doorway Stud (6). (See Figure I.)
5. Attach the Top Doorway Beam (12) between
the Front Right and Left Crown Beams (2,3).
Turn it so that the nicked corners are facing up
and the two remaining holes are facing the outside
to allow the Door Rail (14) to be attached.
6. Attach the Vertical Extender (19) to the
Front Left Crown Beam (3) using the
Long Door Support Bolt (38) and Nut (52), with the
Door Support Spacer (39) between the Extender
and the Stud. (See Figure I, left inset.)
7. Place three Bolts (43) in the Slot at the back
of the Door Rail (14). Attach the Rail to the
Top Doorway Beam (12) and the free end
of the Vertical Extender (19), with the
rounded side up. (See Figure I.)
The door is assembled using the Door Screws (44).
The Screws thread directly into the rounded portions of the parts in the center of the door.
1. Place the Left Door Frame (20) with the
SAFETYFRAMEMAINTENANCEFOUNDATION
Rubber Seal (42) side down.
Attach the Center Door
Frames (26) to the Left
Door Frame (20).
Assemble them with the
rounded portion facing the front,
as shown to the right.
These parts are also marked
with an arrow that needs to point towards
the top of the door.
2. Attach the Right Door Frame (28) to the
Center Door Frames (26) in the same way.
3. Attach the Door Top Frame (24) to the Left and Right
Door Frames (20 and 28).
Turn them so that the rounded
portion faces the front and that
the flange where the pane will sit
faces the center of the door,
see the diagram to the right.
4. Using two Bolts (43) and two Nuts (52), attach
the Door Slider (31) to the Door Top Frame (24)
with the rollers on the top of the door.
5. Insert a Door Bottom Slider (40) into each end of the
Bottom Door Frame (27).
Install the Sliders correctly, with
the gap facing the back of the
door, see diagram to the right.
Attach the Bottom Door
Frame (27) to the Left and Right
Door Frames (20,28) using
two Screws (44) on each side –
the top one into the Bottom Door Frame (27) and
the bottom one into the Door Bottom Slider (40).
6. Raise the assembled Door up and insert the first
roller of its Door Slider (31) onto the Door Rail (14).
Carefully align the first Bottom
Door Slider (40) over the edge of
the Front Floor Plate (17),
see illustration to the right.
Carefully slide the door over and
align the other top Roller and
bottom Slider as was
done earlier.
7. Once the door is installed, install a Bolt (43)
and Nut (52) into the hole on each side of the
Door Rail (14) to prevent the door from sliding
off its rail. Attach the Right and Left Rail End
Caps (49,50) onto the ends of the Door Rail.
Assembling/Installing the Windows
Follow the steps below for each of the two windows.
1. Attach the Side Window Frames (30)
to the Top Window Frame (33),
as shown to the right.
2. Insert Bolts (43) into the
holes at the bottom of the
Side Window Frames (30), so that the threads
stick out the bottom of the window.
3. Remove the protective film from both sides
of the Window Pane (5A). Slide the Window
Pane (5A) into the three sided frame.
4. Slide the Bottom Window Frame (32) onto the two
Bolts (43) and the Window Pane (5A). Secure it in
place with Nuts (52). If needed, apply some pressure
to the heads of the Bolts through the Window
Pane to allow the Nuts to thread on properly.
5. Attach the Window Brace (51) to the Bottom
Window Frame (32) using two Window Screws (45).
The holes on the Window Brace (51)
should face away from the window.
6. Slide the top edge of the Top Window Frame (33) into
the slot at the top of the Crown (35),
see illustration to the right.
The window should be aligned with
the Window Brace (51) on the bottom.
Slide the window into place over one
Window Support Beam (15).
Gradually lower it into place.
7. Loosen the Nuts (52) holding the
Window Support Beam (15) in place and slide the
Window Support Beam (15) up to touch the window.
Secure it into place.
1. Panel Clips (46) are used to secure the
Transparent Panels in place on the Greenhouse.
(See Parts List A.)
Note: Remove the protective film from both sides
of all panels as they are installed.
After removing the protective film from the
Door Center Panel (7A), stick the warning label to it.
Install the Door Center Panel so that the warning label
is easily readable from outside the greenhouse.
2. The Roof Panels (2A) and the
Roof Window Panel (4A) will need to be placed as
shown in the illustrations below. The bottom edges
of these panels need to align above the gutter to
direct rain off the greenhouse. The top edges of
these panels need to be placed up under the edge of
the Crown (35) or the Window Support Beam (15).
3. One at a time, place each Transparent Panel
(1A through 9A) in its proper location on
the Ceiling and Frame of the Greenhouse.
Then, use Panel Clips (46) in the quantity
and location of shown in Parts List A
to secure the Transparent Panel in place.
4. To attach Panel Clips,
see illustration and instructions below:
A) Place the two loose ends of the Clip
into the groove in the frame
B) Swing the center portion of the
Clip up against the Panel
C) Two edges of the Clip swing under
the edge of the panel and the center
edge holds the panel in place.
1. BEFORE EACH USE, inspect the general condition
of the Greenhouse. Check for loose screws,
misalignment or binding of moving parts, cracked
or broken parts, and any other condition that
may affect the safe operation of the Greenhouse.
If a problem occurs with the Greenhouse, have it
corrected before further use.
Do not use damaged equipment.
2. TO CLEAN: Wipe with a damp cloth, using a mild
detergent.
Do not use cleaners that are combustible,
corrosive, or not compatible with aluminum.
3. WHEN STORING: Keep the Greenhouse
in a box and in a clean, dry location.
Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability standards,
and warrants to the original purchaser that this product is free from defects in materials and workmanship for the
period of 90 days from the date of purchase. This warranty does not apply to damage due directly or indirectly,
SAFETYFRAMEMAINTENANCEFOUNDATION
to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities, criminal activity, improper
installation, normal wear and tear, or to lack of maintenance. We shall in no event be liable for death, injuries
to persons or property, or for incidental, contingent, special or consequential damages arising from the use of
our product. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the
above limitation of exclusion may not apply to you. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.
To take advantage of this warranty, the product or part must be returned to us with transportation charges
prepaid. Proof of purchase date and an explanation of the complaint must accompany the merchandise.
If our inspection verifies the defect, we will either repair or replace the product at our election or we may
elect to refund the purchase price if we cannot readily and quickly provide you with a replacement. We will
return repaired products at our expense, but if we determine there is no defect, or that the defect resulted
from causes not within the scope of our warranty, then you must bear the cost of returning the product.
This warranty gives you specific legal rights and you may also have other rights which vary from state to state.
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LISTS IN THIS DOCUMENT
AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR DISTRIBUTOR MAKES ANY
REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO
MAKE ANY REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS QUALIFIED TO REPLACE ANY PARTS
OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY STATES
THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND
LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY
ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS
THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.