Use in a 21 inch base will require the insert to be trimmed on the sides. DIMS: 19.75"W x 19.75"D
Dimensions
19¾ ″ W x 19¾ ″ D
Width
19¾″
Depth
19¾″
3D Interactive Assembly Instructions
1. Download the app
2. Find your product
3. Get the steps
3D interactive instructions on the BILT app guide you step by step through the assembly with voice, text & interactive animated images. Tap on a part for more details. Pinch to zoom in & out for a better view. Drag to rotate the image 360°. BILT eliminates the frustration & guesswork of paper instructions. Download the BILT app FREE on any mobile device.
Refundable Samples → 
1. Download the app
2. Find your product
3. Get the steps
