In interior design, wall moulding is a simple yet highly effective way to instantly add layers and texture to your space, enhancing its overall aesthetic.
Whether you’re planning to create classic wall panels, minimalist partition designs, or personalized artistic lines, accurate measurement and calculation are the first steps to a successful installation.
This guide will walk you through the step-by-step process of measuring, calculating, and planning, helping you easily master the preparation work before installation.
1. Measure All Walls
Measure Wall Length
Use a tape measure or laser distance meter to measure the length of each wall. For uneven or slightly curved walls, do not measure only the middle point. Instead, measure at the top, middle, and bottom separately, and take the maximum value as the reference to ensure there are no gaps or misalignments after installation.
Measure Wall Height
- For full-wall treatments (like entire wall panels), measure from the floor to the ceiling.
- For partial-wall treatments (like waistlines or frames), measure from the top of the baseboard or your preset starting point to the target height.
This measurement directly determines the vertical layout and overall proportions of the moulding, so take extra care to ensure accuracy and maintain the desired visual balance.
Calculate Total Linear Length
Add the lengths of all walls together to get the total linear length required for the wall moulding.
Measure and Subtract Obstacles
Measure the height and width of obstacles such as doors, windows, or built-in furniture, and subtract these dimensions from the total wall length.
2. Calculate the Required Quantity of Moulding
Confirm the Length of a Single Moulding Piece
Before purchasing, check the standard length of your chosen wall moulding.
Calculate the Required Quantity
Divide the total linear length by the length of one moulding piece to get the minimum number of pieces needed. However, this is just a base value. To avoid shortages due to cutting errors, installation issues, or waste, it is recommended to add a 10–15% margin.
For example:
Total length = 7.4 meters, single moulding length = 1 meter → 7.4 pieces
Add 15% margin → 7.4 × 1.15 ≈ 8.5 pieces → It is recommended to purchase 10 pieces.
This ensures a smooth installation process without interruptions caused by insufficient moulding.
3. Measure for Specific Designs (e.g., Decorative Panels or Partition Mouldings)
Calculate Panel Width
If installing divided panels on the wall, first subtract the total width of all gaps from the total wall width, then divide by the number of planned panels to get the width of each panel.
Determine Panel Height
Visual judgment is often the most intuitive. Use painter’s tape to mark the top and bottom positions of the panels first to ensure a balanced overall appearance.
Precisely Calculate Lower Panel Height
For greater accuracy, subtract the height of the upper panels and the total height of the gaps from the total wall height to get the exact height of the lower panels.
Tired of measuring and cutting? Let us make it easy for you!
Measuring, cutting, installing… sounds overwhelming? Don’t worry!
GESSOLANE offers pre-cut, self-adhesive wall moulding kits tailored to your wall dimensions, allowing you to skip all the troublesome steps. Every piece of moulding is precisely cut for you, requiring no effort on your part. Each strip comes with a strong self-adhesive backing—just peel and stick directly onto the wall, with no need for extra glue or nails.
Whether you’re an experienced DIY enthusiast or a beginner trying home renovation for the first time, our kit makes it easy to get started and complete the installation quickly.
Share your wall dimensions and design ideas with us now, and let GESSOLANE help you create the sophisticated space you desire!