Rubber Feet, Bumper & Non-Slip Calculators
Free, practical tools for choosing and fitting rubber feet, bumpers, and grip dots — size a foot to its load, read a durometer number, test an adhesive bond, plan a grip-dot grid, rate a foot's capacity, and check whether something will slide.
Rubber Foot & Bumper Size Selector
Size a foot or bumper to the load. Split the item's weight across its feet and get the minimum contact area and pad diameter that keeps the rubber — and your floor — within a safe pressure.
Durometer (Shore A/D) Hardness Guide
Turn a Shore A or Shore D number into something you can picture — a hardness category, everyday example materials, and the approximate equivalent on the other scale.
Adhesive Bond Strength vs Load Calculator
Check whether a stick-on bumper will hold. From the pad area, number of pads, adhesive strength, and load, get the holding force, the weight it carries, and a safety factor.
Grip-Dot Spacing & Coverage Calculator
Plan a grid of grip dots across an area — how many dots you need, the total rubber contact area, and the percentage of the surface covered, so you can tune the layout before you buy.
Furniture-Foot Load-Capacity Calculator
Find how much a set of feet can safely carry, and the floor pressure a given weight produces — so you protect soft vinyl, laminate, and timber from dents.
Anti-Slip Friction & Coefficient Estimator
Estimate whether a rubber-footed object slides. Get the sideways force it resists, the steepest incline it stays put on, and the grip you'd need against a push.
Durometer & Material Reference
Not a calculator — a reference table. Every Shore A hardness band from gel-soft to rigid plastic, what it suits, and a recommended foot size for common loads, generated straight from the calculators above.