Large 14 1/2w x 12 1/4d top platform step; steps have nonskid treads. Folds for easy storage. Durable, tubular steel frame forms handrail and knee brace. WARNING: Metal ladders conduct electricity. Do not use where contact may be made with live electrical circuits. | Cosco | | Commercial 3 Step Folding Stool 300 lb Capacity 20.5 x 32.63 x 52.13 | Gray | Best Buy