How to Build DIY Closet Shelves in 4 Simple Steps

Here's how to handle that junk pile that's becoming a skeleton in your closet

A white wardrobe with shelves filled with clothes and shoes
Photo: zinkevych / Adobe Stock
A white wardrobe with shelves filled with clothes and shoes
Photo: zinkevych / Adobe Stock
SKILL LEVEL
Simple
COMPLETION TIME
2 hours
COST
$50–$100
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What you'll need:
TOOLS
  • Measuring tape
  • Power drill
  • Hammer
  • Level
  • Stud finder
SUPPLIES
  • Plywood (or material of choice)
  • Screws
  • L-brackets
  • Drywall anchors (optional)
  • Wood stain (optional)

If your closet has become a glorified hidey-hole for your ever-growing pile of stuff, turn to one of the cardinal rules of fitting storage into awkward spaces: When you can’t build out, build up. And, unless you’re storing an extensive collection of trench coats, maxi dresses, and floor-length bathrobes, you’re likely dealing with some untapped vertical space. What better way to use it than by building customized shelving to fit your needs? Here’s how to build DIY closet shelves to harness your closet’s full storage potential. 

Prepping to Build DIY Closet Shelves

Building the best DIY custom closet is all about finding what works for your space (and your stuff). This is what you’ll need to do to prepare.  

Planning the Space

Closets come in a huge array of shapes and sizes, so your first step in building DIY closet shelves is to measure the space you’re working with. Using your measuring tape, measure the width, height, and depth of your closet. It’s helpful to draw a diagram and log these numbers so you’ll have a visual representation of the space.

Next, assess your inventory. Gather the future contents into piles and start plotting how you’ll organize your closet. Will you be storing stacks of jeans and sweaters? Storage bins? Note the heights of your tallest possessions and use these to determine the amount of space you’ll need between the shelves and the number of shelves you’ll need.

Cut the Wood

A man cutting a wooden plank with a cutting machine
Photo: Enadan / Adobe Stock

Once you’ve determined how long and thick your shelves need to be, head to your local home improvement store or lumber yard to pick up the wood. If you need a specific size, many businesses will custom-cut it for you (if you’re not sure, call ahead of time). Otherwise, you’ll need to cut your own wood by measuring, clamping it down, sawing it to size, then sanding it until it’s smooth and splinter-free.

Determine the Number of L Brackets You Need

While you’re out buying your wood, grab however many L brackets you’ll need to support your shelf. For shelves that are shorter than 36 inches, you’ll need two per shelf. Longer shelves will require an additional L bracket in the center for extra support. 

Finish the Wood

If you’re planning on staining or painting the wood, you’ll want to do this before installing your DIY closet shelves. To stain your wood, add the stain to a cotton rag and rub it into the wood until you have full coverage. To paint, add a coat of primer, allow it to dry, then follow up with one to two coats of your chosen paint.

  1. Empty Out the Closet

    A woman emptying a closet from clothes
    Photo: Inna / Adobe Stock

    Before you install your DIY shelves, empty out the closet’s contents. This might seem like a pain, but it will allow you ample working space, plus the chance to organize everything as you put it back.

  2. Determine Where You’ll Put Your Shelves

    Refer to your diagram and start mapping where you’ll put the shelves. You may need a stud finder to ensure you’re attaching the shelf to a wall stud. If you’re not attaching the shelf to a stud, be sure to use drywall anchors to screw it in securely. Mark the measurements on the wall with a pencil.

  3. Screw the L Brackets Into the Bottom of the Shelf

    Next, mark where you’ll be attaching the L brackets and use a power drill to screw them into the bottom of the shelf. If you’re using two L brackets, measure and mark your wood so each bracket is the same amount of space from the edge. If you’re using three or more L brackets, make sure the brackets are evenly spaced, and that the two brackets on either end are equal distances from the edge.

  4. Attach the Shelf to the Wall

    A man placing shelves in a closet
    Photo: alexeg84 / Adobe Stock

    Once you’ve secured your brackets to the shelf, hold the shelf up to the wall where you’ll be screwing it in. Place a level on top of the shelf to ensure it stays plumb (do not use the floor or ceiling as a reference, as these may not be completely level). Then, screw the brackets into the wall as you’re holding it in place.

DIY Closet Shelves vs. Hiring a Pro

DIY-ing can be fun and fulfilling, but it isn’t for everyone (and it’s certainly not without its limitations). If you need a little extra help designing your dream closet, you can always reach out to a pro to help you achieve your vision. Get in touch with a local closet maker for a custom closet plan that you’re sure to love.

Frequently Asked Questions

If you’re looking for shelving that will stand up to years of heavy stacking, plywood is the clear winner against MDF (a.k.a. medium-density fiberboard). Plywood is a sturdy material that resists sagging, warping, and splitting, making it the perfect fit for shelving in a variety of spaces. For sheds, garages, and other environments that aren’t climate-controlled, wood or plywood is a must, as moisture and humidity will cause MDF to warp over time. While MDF is the more wallet-friendly material, it should only be used for storing lighter items in a climate-controlled space. 

If you’re on a tight budget, the least expensive material you can buy for DIY closet shelves is chipboard, a.k.a. particle board. This inexpensive material is made from a pulp of sawdust, resin, and glue that’s pressed together under high temperature and pressure. As you can imagine, it’s not very sturdy and might buckle under your blue jean collection, so you should only use it if you’re storing very light items. 

For most purposes, you should go with wood that’s at least 3/4-inch thick for DIY closet shelves. This is the standard thickness for solid wood or MDF shelving and should be able to hold a good amount of weight (around 80 pounds for MDF and 130 pounds for plywood). If you’re storing tools, camera equipment, or other heavier items, you can go up to 1 1/4-inch thickness for maximum strength and durability.

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