12x20 Raised Center Aisle Shed Side Storage Plans

This step by step diy project is about 12×20 raised center aisle shed side storage plans. This is PART 4 of the shed project, where I show you how to build the side storage units. Take a look over the rest of my woodworking plans, if you want to get more building inspiration. Remember that the materials list is for one storage unit.

When buying the lumber, you should select the planks with great care, making sure they are straight and without any visible flaws (cracks, knots, twists, decay). Investing in cedar or other weather resistant lumber is a good idea, as it will pay off on the long run. Use a spirit level to plumb and align the components, before inserting the galvanized screws, otherwise the project won’t have a symmetrical look. If you have all the materials and tools required for the project, you could get the job done in about a day.

Projects made from these plans

12×20 Raised Center Aisle Shed Side Storage Plans

Building-the-run-in-shed

Cut & Shopping Lists

A – 2 pieces of 4×4 lumber – 48″ long SKIDS
B – 2 pieces of 2×4 lumber – 43 7/8″ long, 4 pieces – 69″ long 2xWALL FRAME
C – 2 piece of 4×4 lumber – 72″ long POSTS
D – 2 pieces of 2×6 lumber – 144″ long BEAMS
E – 10 pieces of 2×4 lumber – 55″ long RAFTERS
F – 2 pieces of T1-11 siding – 48″x91″ long 2xSIDE WALL
G – 1 piece of 3/4″ plywood – 48″x96″ long, 1 piece – 48″x48″ long, 1 piece – 7″x48″ long, 1 piece – 7″x96″ long FRONT WALL
H – 60 sq ft of tar paper, 60 sq ft of asphalt shingles ROOFING
I – 2 pieces of 2×6 lumber – 59″ long, 1 piece – 148 1/4″ long, 2 pieces – 70 3/4″ long, 2 pieces – 6 1/2″ long TRIMS

3 pieces of 4×4 lumber – 8′
3 pieces of 2×6 lumber – 12′
3 pieces of 3/4″ plywood – 48″x96″
12 pieces of 2×4 lumber – 8′
5 pieces of 2x lumber – 12′
1 piece of 1×6 lumber – 14′
2 pieces of 1×4 lumber 4′
60 sq ft of tar paper, 60 sq ft of asphalt shingles
2 1/2″ screws, 3 1/2″ screws, 1 5/8″ screws
4d nails, 16d nails
wood filler , wood glue, stain/paint

Tools

Hammer, Tape measure, Framing square, Level

Miter saw, Drill machinery, Screwdriver, Sander

Safety Gloves, Safety Glasses

Time

One weekend

PART 1: 12×20 Raised Center Aisle Shed Plans
PART 2: 12×20 Raised Center Aisle Shed Roof Plans
PART 3: 12×20 Raised Center Aisle Shed Doors Plans
PART 4: 12×20 Raised Center Aisle Shed Side Storage Plans

Building a 4×12 run in shed

Frame-for-side-shed-walls

The first step of the project is to build the side frames for the shed. Cut the components from 2×4 lumber and then drill pilot holes through the plates. Insert 3 1/2″ screws into the studs. Make sure the corners are square and align the edges with attention.

Side shed skids

Use 4×4 skids for the side sheds. Fit the side wall frames into place. Drill pilot holes and insert 3 1/2″ screws into the skids and into the center aisle shed.

Posts

Use 4×4 lumber for the front posts. Use a circular saw to make the notches to the top of the posts. Make parallel cuts inside the marked area and then use a chisel to remove the excess. Smooth the surface with sandpaper.

Fitting the support posts

Fit the posts to the side frames. Drill pilot holes through the frames and insert 3 1/2″ screws into the posts.

Fitting-the-support-beams

Fit the 2×6 beams to the front and to the center aisle shed. Use a spirit level to make sure the beams are horizontal. Drill pilot holes and insert 3 1/2″ screws to lock the beams into place.

Rafters-for-side-sheds

Use 2×4 lumber for the rafters. Mark the cut lines on the slats and then get the job done with a circular saw.

Fitting the rafters

Fit the rafters to the top of the shed, every 16″ on center. Use rafter ties to lock the rafters into place tightly.

Siding sheets for side sheds

Use T1-11 siding sheets for the sides of the run in shed. Cut the sheets at the dimensions displayed in the diagram and then secure them into place with 2″ nails, every 8″ along the framing.

Roof sheets for side sheds

Use 3/4″ plywood for the roof of the shed. Cut the sheets at the right dimensions and then secure them into place with 1 5/8″ screws. Leave no gaps between the sheets for a proper result.

Side roof trims for side sheds

Use 2×6 lumber for the side roof trims. Make the angle cut at one end of the trims and then secure them into place with 3 1/2″ screws.

Roof trims for side sheds

Fit a 1×6 trim to the front of the shed. Align the edges with attention and secure the trim into place with 2″ nails.

Fitting the roofing to the side storage sheds

Cover the roof with tar paper and then install the asphalt shingles. Make sure you also install the appropriate drip edges, so you can seal the shed roof. Read the manufacturer’s instructions for a tight fit.

Front and back trims

Fit the 1×4 trims to the front and to the back of the raised center aisle shed. Align the edges with attention and insert 2″ nails to lock the trims into place tightly.

12×20 Raised Center Aisle Shed Plans

Last but not least, you need to take care of the finishing touches. Therefore, fill the holes with wood putty and then smooth the surface with 120-220 grit sandpaper. Apply a few coats of paint or stain so you enhance the look of the shed and you protect the components from decay. Don’t forget to take a look over PART 1, PART 2 to learn how to build the frame and the roof for the shed, as well as PART 3 to see how to frame the front door.

This woodworking project was about 12×20 raised center aisle shed side storage plans free. If you want to see more outdoor plans, check out the rest of our step by step projects and follow the instructions to obtain a professional result.