How to Measure for a Custom Rubber Crate Floor
By ActiveDogs | Published: 2026-11-03
Category: How-to Guides
Get a custom rubber crate floor that fits right the first time. Follow these steps to measure your dog crate floor in fractional inches and avoid common sizing mistakes.
Quick answer
Measure the inside floor of your crate at its widest and longest points, write both dimensions in fractional inches, and order a custom rubber crate floor that matches those numbers exactly. Do not add extra length or width for a trim allowance.
Why fractional inches matter for a custom rubber crate floor
A rubber crate floor sits flat and does not stretch, so a measurement rounded to the nearest inch can leave a gap along one side or force the mat to curl up at the edges. The Rubber Crate Floor - Custom Size requires measurements listed in fractional inches for this reason. If you measure in centimeters or decimal inches, convert carefully before ordering.
Measure the crate floor itself, not the old mat. A worn liner may have stretched, shrunk, or been cut down, so using it as a template can carry its errors into your new custom size crate mat.
When the crate floor is not a simple rectangle
Some aluminum crate floors have rounded corners, wheel wells, or a lip around the base. A rectangular custom rubber crate floor can still work if it rests inside those features rather than on top of them. Measure the clear, flat area only, and note any obstruction that would keep the mat from lying flat.
If your crate has a raised lip, measure inside the lip. If the floor has a drain hole or a seam, measure around it and decide whether the mat should cover it or stop short. These choices affect the final dimensions more than the overall crate size does.
Check the mat thickness against your crate setup
The Rubber Crate Floor - Custom Size is 1/2 inch thick. That thickness adds a small amount of height inside the crate, which matters if your dog crate has a tight door opening or a fitted cover. It also means the mat needs a flat floor to sit securely; a floor with deep ridges or a heavy slope may not be the right candidate for a custom-size mat.
Thicker is not automatically better for every dog. A 1/2-inch rubber floor is durable and gives dogs a textured, non-slip surface, but it is not a cushioned bed. If your dog needs padding for long rests, plan to use the rubber floor as a base and add a separate bed on top.
Steps to measure your crate floor
- Remove everything from the crate floor: Take out the old mat, bedding, toys, and loose debris. Measure the bare floor so nothing adds height or shifts your tape measure. A clean, empty floor is the only reliable surface to measure.
- Measure the inside length at the center: Place the tape measure along the middle of the crate floor from the inside front edge to the inside back edge. Record the number in fractional inches, such as 35 3/4 inches. Measure at the center first; corner measurements can be shorter if the crate has rounded corners.
- Measure the inside width at the center: Measure from the inside left edge to the inside right edge at the midpoint of the floor. Record this in fractional inches as well. Keep length and width separate; do not average them or assume the crate is square.
- Repeat both measurements at the front and back: Take the length and width again near the door and near the back wall. If the numbers differ by more than 1/8 inch, use the smallest measurement so the mat does not bind. Crate floors can be slightly out of square; the smallest clear measurement prevents a forced fit.
- Check for obstructions and note their positions: Look for wheel wells, hinges, latches, or a raised lip that intrudes into the floor area. Measure the clear flat space between them, not the full crate footprint. A mat that overlaps an obstruction will sit unevenly and may curl.
- Convert everything to fractional inches: If you measured in centimeters or decimal inches, convert to the nearest 1/8 inch and write each dimension clearly. Double-check the conversion before ordering. Fractional inches are required for the custom rubber crate floor, so a conversion error becomes a fit error.
- Order the custom size crate mat with your final numbers: Enter the length and width exactly as measured, without adding a trim allowance. The Rubber Crate Floor - Custom Size is made to your listed fractional measurements. Do not round up for safety; a mat that is too large will buckle, while an exact fit lies flat.
Product facts
- Rubber Crate Floor - Custom Size: The Rubber Crate Floor - Custom Size has a textured, non-slip surface and is 1/2 inch thick. The texture helps dogs grip when a vehicle accelerates or turns, and the 1/2-inch thickness adds a small amount of height inside the crate.
Rubber Crate Floor - Custom Size - Rubber Crate Floor - Custom Size: Cleanup is easy: rinse the mat down with a garden hose. A removable rubber floor is simpler to clean than a fixed crate floor, especially after muddy trips or accidents.
- Rubber Crate Floor - Custom Size: The mat is extremely durable for long-lasting use. A durable rubber liner can outlast fabric mats, but it still needs accurate measurements to sit flat and stay in place.
