Quarter Round Calculator — Calculate Molding Measurements

Quarter Round Calculator

Calculate quarter round molding measurements for your room. Determine linear feet needed, cutting angles, and material requirements for perfect installations.

Step 1: Room Dimensions

Understanding Quarter Round

Quarter round molding is used to cover gaps between flooring and baseboards. It’s typically ¾” x ¾” in cross-section and sold in lengths of 6-8 feet.

Step 2: Quarter Round Details

Cutting Quarter Round

For inside corners, cut at 45° angles. For outside corners, cut at 45° but reversed. Always measure twice and cut once for perfect joints.

Quarter Round Calculation Results

Summary
Size Comparison
Cutting Guide

Total Quarter Round Needed

46 ft
Approximately 6 pieces
Linear Feet Needed
46 ft
Number of Pieces
6 pieces
Cutting Angle
45°
Waste Factor
10%

Quarter Round Size Comparison

Size Type Dimensions Linear Feet Needed Pieces Required Typical Use

Quarter Round Cutting Guide

Cutting Formula

Cutting Angle = 180° – Corner Angle ÷ 2

For standard 90° corners, cut at 45° angles. Always cut quarter round face-up in a miter box with the back against the fence for accurate results.

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