Project story

Expandable Storage Shelves

1x4 posts, cleats cut from their own offcuts, ply shelves screwed down. Columns share posts.

by Greg·configurable: height, depth, shelf width, and 2 more
Storage Shelves, finished
Contents 4 sections
  1. The easiest build possible
  2. The offcuts become the standoffs
  3. Columns share their posts
  4. Customize and build it

I needed to get our house organized and was talking to Jess' dad about storage so he shared a super simple design for modular shelves that he's been using for years. All you need are a bundle 1x4s and some 1/2" plywood.

The post height, the shelves per column, and the number of columns. Drag any of them and the posts, the standoffs, the ply, and the cut list all regenerate together.
Fig 1The post height, the shelves per column, and the number of columns. Drag any of them and the posts, the standoffs, the ply, and the cut list all regenerate together.

These shelves are fantastic in a number of ways:

  • Can be built with just a drill and any saw (circular saw, saw, table saw) and a drill
  • Shelves can be disassembled, moved, and stored easily

The easiest build possible

The thing that makes these shelves quick to build is how easy they are.

The offcuts become the standoffs

A post is 72 inches cut from a 96-inch board, which leaves a two-foot tail. That tail chops into eleven 2-inch blocks, and those blocks are the standoffs every shelf rests on. The default build needs 48 of them and eight boards, so the tails alone cover every standoff with plenty left over.

One board in: a post, then the tail chopped into standoffs. Nothing left but sawdust.
Fig 2One board in: a post, then the tail chopped into standoffs. Nothing left but sawdust.

The joint is just as plain. A standoff takes two screws into a post, the shelf sits on top of four standoffs and screws down into them, and that's the whole thing. Every screw drives straight and square, and the shelf's weight lands on the standoff's face rather than on anything you had to cut accurately.

The bottom shelf: standoffs screwed to ghosted posts, ply screwed down onto the standoffs.
Fig 3The bottom shelf: standoffs screwed to ghosted posts, ply screwed down onto the standoffs.

Columns share their posts

The part I like most is what happens when you want it wider. A second column doesn't need four more posts, it needs two. The pair between two columns carries standoffs on both faces, so every column after the first costs two posts, a stack of blocks, and some ply.

Two columns, six posts. The middle pair works both sides.
Fig 4Two columns, six posts. The middle pair works both sides.

Customize and build it

The shopping list below is for the build you see, in the sizes the store actually sells. It comes from the same program as the model, so it can never fall out of date. Set your dimensions and both regenerate together.

Shopping list

Everything this build needs, in the sizes the store sells.

Your shelves, your wall. Drag any dimension and the shopping list follows.
6' height23½" depth24" shelf width4 shelves3 columns
adjust
(8)1x48'
(2)½" plywood sheet4' × 8'
(200)#8 flat head wood screw1¼"

More to build

Each one works the way this one does. Read how it was designed, change the numbers to fit your space, and take the list to the store.