How to Build Dog Steps for Bed | A Simple DIY For Any Bed Height

Whether you have a tiny senior dog or a big breed that thinks your bed is a trampoline, a set of DIY stairs beats a painful jump every morning. The best part is that the build follows one simple principle: match the steps to your bed and your dog, and everything else is just careful cutting and assembly. Here’s the process from measuring tape to first confident climb.

Measure Your Bed and Plan the Steps

Start by measuring the distance from the floor to the top of your mattress. This step is where most plans go wrong — a standard bed might be 24 inches high while a platform bed sits closer to 18 inches, and that difference changes your build completely.

Once you have that number, divide it into the step count. Small and senior dogs do best with rises of no more than 6–7 inches per step, while a bed around 24 inches high usually works well with three or four steps in the 6–8 inch range. Tread depth matters just as much: plan for roughly 10–12 inches of depth for most dogs, and go up to 12–14 inches for larger breeds so their paws land fully on each step.

You can check your math against a simple rule: add your rise and tread depth together. A short rise and deep tread is always the safer choice — stairs that are too steep or too shallow are the most common DIY mistake and the easiest one to prevent with a bit of measuring first.

Cut Your Pieces and Frame the Stairs

For a box-style design, cut the two side panels to your overall step profile. Adjust the width to your dog’s size; wider is almost always fine, too narrow is not.

Cut the tread pieces to span between the sides, plus riser boards if you want a closed front. Assemble the frame with wood glue and screws or nails, keeping everything square as you go. Add support cleats or braces underneath each tread — this matters most for heavier dogs, and several DIY guides recommend it specifically for preventing flex.

The most important test comes before you add anything else. Press down on each step and check for wobble or flex across the span. If there is any give, add more bracing now rather than after the finish is on.

Sand, Add Grip, and Finish With Pet-Safe Materials

Sand every edge and corner smooth — splinters and sharp corners are miserable for a dog’s paws and a quick way to turn your build into a trip to the vet. Pay extra attention to the tread edges and the bottom corners where your dog’s legs will brush against the frame.

Nonslip surfaces are not optional on stairs. Carpet, rubber tread pads, or outdoor carpet all work well; staple the carpet firmly to each tread or use adhesive-backed rubber pads that match the tread dimensions. One common build approach staples carpet directly to the tread, which gives solid grip that also muffles the sound of dog nails clicking.

For the finish, use a pet-safe wood finish like water-based polyurethane. Let it cure for a full 48 hours before letting your dog near the stairs — fresh finish smells strong and can be harmful while it’s still off-gassing. Once fully cured, the stairs are as safe as any other furniture in your home.

Test Stability Before Your Dog Takes the First Step

After the finish has cured, give the whole structure one final check. Press each step again, wiggle the frame side to side, and watch for any movement at the base. If the stairs are unsteady, either add more bracing or place a nonslip mat underneath the base to keep them anchored in place.

Some builds work best lightly anchored to the bed frame — a small bracket or strap keeps the top step from sliding as your dog climbs. This is especially helpful for the first weeks while your dog is learning the stairs and may step near the edge rather than the center of the tread.

Once it feels solid, let your dog explore the stairs on their own terms. Lead them up with a treat on the bed, then reward from the top and the bottom a few times.

Having trouble planning the right dimensions for your dog’s size? Our tested roundup of best dog steps for high beds covers the top ready-made options if you’d rather skip the build.