How to use this calculator
Start by entering the width and height of your artwork in inches. Measure the actual art surface, not any existing frame or stretcher bar overhang. Then select your art type so the calculator knows how deep the frame rabbet needs to be.
Adjust the float gap slider to set how much space you want visible between the art edge and the frame. Most people prefer 3/8 inch for a clean look without too much negative space.
Choose your frame material and desired frame width. The calculator gives you a complete cut list with exact measurements, total linear feet to purchase, itemized costs, and a comparison against what a custom shop would charge for the same frame.
Why floating frames cost so much at shops
Custom framing shops typically price floating frames using a united inch formula: the width plus height of the art, multiplied by a per-inch rate, plus a base fee. For a standard 24x36 canvas, that formula lands you somewhere between $180 and $350 depending on the shop, materials, and your location.
The materials themselves rarely account for more than 20% of that price. The rest covers labor, overhead, design consultation, and margin. That is not a criticism of framing shops: precision work takes skill and time. But if you own a miter saw and are comfortable with basic woodworking, the actual build takes about an hour and the materials run a fraction of the shop price.
What tools do you need?
At minimum, you need a miter saw (or miter box with hand saw for smaller frames), wood glue, a band clamp or corner clamps, a measuring tape, and a pin nailer or small finish nails. A table saw or router helps for cutting your own rabbet if your stock does not already have one.
If you do not own these tools, check if your local hardware store rents miter saws. Many Home Depot and Lowes locations rent them by the day for around $50, which still keeps your total well under shop pricing for even a single frame.
Choosing the right frame material
Pine and poplar are the most forgiving for beginners. Pine takes stain well and is available at every hardware store. Poplar has a smoother grain that paints beautifully if you want a solid color finish.
Oak and walnut give you a premium look but cost significantly more and require sharper blades for clean miter cuts. Walnut in particular can blow out on exit cuts if your blade is dull. If you go hardwood, invest in a quality 80-tooth miter saw blade.
Aluminum channel frames are the most modern option and do not require miter cuts at all. They use corner brackets and cut straight at 90 degrees, which makes them easier to assemble but limits the style to a minimal, contemporary look.