Suncast BMS8125 User manual

Blow Molded Resin Storage Shed
ASSEMBLY INSTRUCTIONS
© 2021 Suncast Corporation, Batavia, IL 0361334F
Tools Needed for Installation
Assistance is required
during entire assembly.
Thank you for your purchase. Please go to Suncast.com to register your product for warranty.

2
Before You Begin...
• Consult your local authorities for any permits required to construct shed.
  Priortotheconstructionofyourshed,checkwiththelocalbuildingcodeofcialtoreviewanyrequired
permits or building limitations.
• A level and sturdy foundation is required before shed construction can begin.
Review the site preparation information within the manual before beginning assembly.
• Read instructions thoroughly prior to assembly.
  Thiskitcontainspartsthatcanbedamagedifassembledincorrectlyorinthewrongsequence.
• Please follow instructions.
Suncast is not responsible for replacing parts lost or damaged due to incorrect assembly.
• Assistance is required during entire assembly.
IMPORTANT
OPEN ALL BOXES FIRST AND NEATLY LAYOUT PARTS. SMALL PARTS MAY BE CONTAINED IN EACH BOX.
PLEASE REFERENCE THE PARTS LIST WITHIN THIS MANUAL TO VERIFY ALL PARTS ARE PRESENT.
COMPLETE SITE PREPARATION AND FOUNDATION CONSTRUCTION BEFORE UNPACKING ALL PARTS.
Caution
• Proper site preparation required.
• Shed not intended for use in extreme weather conditions.
• Shed not intended for storage of ammable or caustic chemicals.
• Store heavy items near the bottom of shed.
• Shed not intended for use by children.
• DO NOT stand, sit, or store items on storage shed roof.
• Treat carefully in extreme temperatures.
• Repair or replace broken parts immediately.
• Suncast is not responsible for damage caused by weather or misuse.
• At regular intervals inspect your shed to make sure that assembly integrity has been maintained.
• Periodically check that the location you have chosen to set your shed is still level.
• This kit contains parts with metal edges. Please be careful when handling.
Suncast Products and Replacement Parts
www.suncast.com 1-800-846-2345 or 1-630-879-2050

3
Shed Safety and Care
• Hot items, such as recently used grills, blowtorches, etc., must not be stored in the shed.
• Heavy articles should not be leaned against the walls, as this may cause panel distortion and
permanent damage.
• Keep roof clean of snow and leaves.
• The shed walls and roof sections have a textured exterior, much like vinyl home siding. Over time,
dust may accumulate in the texture. When combined with moisture, this could encourage the growth
of moss or mold on the shed. To maintain the look of your shed, we recommend cleaning it each year
with mild soap and water. DO NOT use bleach, ammonia, or other caustic cleaners, and DO NOT use
stiff bristle brushes. Failure to perform annual cleaning could result in permanent staining of the plastic.
This is not a manufacturing defect and is not covered under warranty.
Assembly Day Tips
• Complete site preparation and foundation construction before unpacking parts and
beginning assembly.
• DO NOT attempt to assemble on a day with strong winds.
• DO NOT attempt to assemble on days when temperature is below 32 degrees.
• Set aside appropriate amount of time to completely assemble shed.
• Make sure you have assistance nearby to lift and secure parts in place.
• Wear light duty work gloves while assembling shed.
• Once roof is assembled, a ashlight may be of use when assembling smaller components inside
shed.
• DO NOT use a hand drill to tighten provided Easy bolts. Use 010210410
Easy Bolt Easy Driver tool (provided) ONLY.
• Suncast provides extra hardware for small fasteners for customer convenience. In some
cases, there will be extra small fasteners once the assembly is complete.
Note: This product contains parts that are used in different orientations to construct the shed. Please take note of
the orientation of the parts shown throughout this instruction manual. Failure to follow instructions could result in
damage to parts. Suncast is not responsible for replacing parts lost or damaged due to incorrect assembly.

4
IMPORTANT
OPEN ALL BOXES FIRST AND NEATLY LAYOUT PARTS. SMALL PARTS MAY BE CONTAINED IN EACH BOX.
PLEASE REFERENCE THE PARTS LIST WITHIN THIS MANUAL TO VERIFY ALL PARTS ARE PRESENT.
COMPLETE SITE PREPARATION AND FOUNDATION CONSTRUCTION BEFORE UNPACKING ALL PARTS.
Parts - Walls and Floors

5
Parts - Doors
IMPORTANT
OPEN ALL BOXES FIRST AND NEATLY LAYOUT PARTS. SMALL PARTS MAY BE CON-
TAINED IN EACH BOX. PLEASE REFERENCE THE PARTS LIST WITHIN THIS MANUAL TO
VERIFY
ALL PARTS ARE PRESENT.
COMPLETE SITE PREPARATION AND FOUNDATION CONSTRUCTION BEFORE
UNPACKING ALL PARTS.

6
Parts - Headers
IMPORTANT
OPEN ALL BOXES FIRST AND NEATLY LAYOUT PARTS. SMALL PARTS MAY BE CON-
TAINED IN EACH BOX. PLEASE REFERENCE THE PARTS LIST WITHIN THIS MANUAL TO
VERIFY
ALL PARTS ARE PRESENT.
COMPLETE SITE PREPARATION AND FOUNDATION CONSTRUCTION BEFORE
UNPACKING ALL PARTS.

7
Parts - Truss
IMPORTANT
OPEN ALL BOXES FIRST AND NEATLY LAYOUT PARTS. SMALL PARTS MAY BE CON-
TAINED IN EACH BOX. PLEASE REFERENCE THE PARTS LIST WITHIN THIS MANUAL TO
VERIFY
ALL PARTS ARE PRESENT.
COMPLETE SITE PREPARATION AND FOUNDATION CONSTRUCTION BEFORE
UNPACKING ALL PARTS.

8
Parts - Roof
IMPORTANT
OPEN ALL BOXES FIRST AND NEATLY LAYOUT PARTS. SMALL PARTS MAY BE CON-
TAINED IN EACH BOX. PLEASE REFERENCE THE PARTS LIST WITHIN THIS MANUAL TO
VERIFY
ALL PARTS ARE PRESENT.
COMPLETE SITE PREPARATION AND FOUNDATION CONSTRUCTION BEFORE
UNPACKING ALL PARTS.

9
Hardware

10
Door Handle Kit

11
Site Preparation and Platform Construction
Materials NOT supplied with Shed Kit
Note: Site preparation is required for this shed. Placing the shed on one of the constructed foundations detailed below
is required. Without a constructed foundation, settling will probably occur, causing distortion and damage to the shed.
Suncast is not responsible for replacing parts damaged or property lost due to incorrect assembly. Warranty r
equires foundation.
Note: Complete the site preparation and foundation construction before unpacking parts and beginning assembly. For
tips on site preparation, go to www.suncast.com, consult retailer, or local code.
To prepare your shed site, follow the steps below:
1) Consult your local authorities for building codes and covenants before beginning foundation or erecting shed.
2) Before any digging, check with local utilities to determine location of buried cables, pipes, etc.
3) Decide which type of foundation you want:
- Concrete slab, 4" thick
- Wood platform
Use exterior grade wood. The wood platform should be set on pier blocks or footing. Consult your local retailer for
help to determine the best anchoring method for your particular installation. The provided plans are sized for the
minimum number of cuts to lumber and plywood.
4) Prepare the building site:
- The ground should slope away from the foundation area to provide drainage.
- The foundation surface must be at and level.
- A vapor barrier should be provided to prevent excessive condensation in the shed.
- Follow local building codes for a proper vapor barrier.
5) Anchoring the shed to the foundation:
- Consult your local retailer for help to determine the best anchoring method for your particular installation.
- To secure the shed to a concrete slab, use masonry fasteners available at your local hardware retailer.
- To secure the shed to a wood platform, use 1/4" x 3" long lag screws with washers.
Anchoring oor panel to concrete slab
• Secure shed to concrete slab using masonry
fasteners.
• Dimensions allow for shed to t within the nearest
1" on each side.
Anchoring oor panel to wood platform
• Secure shed to wood platform using 1/4" x 3" lag
screws.
OR

12
A 2 48" x 96" x ¾" Plywood
B 1 25¼" x 96" x ¾"
C 2 2" x 6" x 96"
D 4 2" x 6" x 14¼"
E 7 2" x 6" x 118¼"
Site Preparation and Platform Construction (continued)
Materials NOT supplied with Shed Kit
Wood platform critical spacing
• Check all critical spacing measurements.
Wood platform materials list
PLEASE NOTE-DIMENSIONAL LUMBER
IS ACTUALLY ½" SMALLER THAN NOTED
SIZES (A 2x 6 BOARD ACTUALLY
MEASURES 1½" x 5 ½")

13
Place gasket (U), window (R), and frame (T) into door
channel. Secure with ten screws (JJ), starting at corners.
DO NOT over tighten screws. Repeat for right door (M).
Note: The cut portion of gasket (R) MUST be assembled
on bottom of door channel.
Peel lm from both sides of window (R). Remove
protective lm from door edge.
Door Pre-Assembly
At bottom interior side of left door (L), attach D-ring slide
bolt (S) with four screws (JJ).
At top interior side of left door (L), attach D-ring slide
bolt (S) with four screws (JJ).

14
Lay front header (J) on ground with lettering side facing
up. Place berglass vent screen (Y) into rear opening in
front header (J). Secure with eight screws (JJ). DO NOT
over tighten screws.
Place header beam (Z) into pocket of front
header (J). Secure with six screws (JJ). DO NOT over
tighten screws.
Header Pre-Assembly
Slide roof ridge beam bracket (X) under tabs on
inside peak of front header (J) and secure with two
screws (JJ). DO NOT over tighten screws.
Repeat Steps 5-7 for rear header (K)

15
Ridge Beam Pre-Assembly
Place ridge beam joiner (DDD) into the 3' ridge beam
(EEE). Secure with hex bolt (MM) and nut (LL).
Part (EEE) orientation is critical, see picture.
Place 7' ridge beam (V) onto the ridge beam joiner
(DDD). Secure with hex bolt (MM) and nut (LL).

16
Attach side adaptor bracket (FF) at end of left truss
leg (AA) with one cap screw (MM) and one nut (LL).
Repeat for remaining side adaptor bracket (FF).
Note: DO NOT over tighten. This makes roof assembly
difcult.
Roof and Truss Pre-Assembly
Attach two truss cross beams (EE) to two truss legs
(AA) with two cap screws (MM) and two nuts (LL). Stand
truss and check cross beam is level.
Attach truss bracket (CC) to end of one truss leg (AA)
with one hex bolt (RR) and one nut (LL).
Repeat for second truss leg (AA).
Place skylight gasket (YY) into skylight (HH). Place
skylight (HH) onto right roof panel (O). Secure from
underside with eight screws (JJ). Make sure rib on
plastic parts is seated fully against gasket on skylight.
Repeat for remaining roof panels.

17
Shed Assembly/Walls
Push left oor (A) and right oor (B) panels together and
secure with six screws (JJ).
Note: Refer to pages 11 and 12 to secure oors to
foundation.
Repeat Step 15 for left oor extension (C) and right oor
extension (D). Secure with 15 screws.
Note: Refer to pages 11 and 12 to secure oors to
foundation.

18
Align tab on bottom of left front corner (E) with slot on
left oor (A). Lower panel into slot and lock in place by
sliding panel toward door opening.
Note: Use a rubber mallet to “push” left front corner
(E) into locked position.
Shed Assembly/Walls (continued)
Tip left front corner (E) back to vertical position and
align lower tabs on right side with slots in oor.
Note: You will hear a snap when tab is fully engaged.
Tip left front corner (E) outward slightly and bend corner
hinge.

19
Align tabs on bottom of side panel (F) with slots along
oor (A). Lower panel into slots and lock in place by
sliding panel toward front corner.
Note: Use a rubber mallet to “push” side
panel (F) into locked position.
Shed Assembly/Walls (continued)
Secure side panel (F) with four easy bolts (NN), working
from oor to roof. DO NOT use torque wrench. Use easy
bolt easy driver (OO) and hand tighten. Easy bolt head
will be ush when fully seated. DO NOT over tighten
easy bolts.
Note: You may hear a click when easy bolt has been
tightened completely.

20
Shed Assembly/Walls (continued)
Repeat Steps 17-22 for remaining panels.