How Deep Should a Monitor Riser Be? A Practical Sizing Guide
In this article
A monitor riser should be deep enough to support the entire monitor base with a safe margin, but no deeper than your desk can comfortably accommodate. There is no single depth that fits every screen. Measure the base from front to back, check the riser's usable top surface rather than its advertised overall size, and confirm that cables can leave the monitor without being pinched.
For many setups, the correct answer comes from the monitor base, not the screen diagonal. Two 27-inch monitors can have very different stands. One may use a shallow rectangular foot, while another has a V-shaped base that reaches far toward the user. A riser selected only from screen size can therefore be unstable or consume more desk space than expected.
Quick answer
Start with this rule: the riser's usable depth must be greater than the full front-to-back depth of the monitor base. Add enough clear surface that the base does not sit on an edge, over a bevel or across a seam. Then verify four other constraints:
- The riser itself sits fully and securely on the desk.
- The screen remains at a comfortable viewing distance.
- The keyboard and mouse still have enough usable depth.
- Power and video cables can move without sharp bends or tension.
If any one of these checks fails, a different riser, a deeper desk or a monitor arm may be a better solution.
Measure the monitor base first
Use the largest footprint, not the narrowest point
Measure the base at its deepest points. For a V-shaped stand, this means from the rear-most point to the front tips. For a round or oval base, measure the full diameter in the front-to-back direction. Include rubber feet or projections that actually carry the load.
Do not measure the screen panel, neck or central post and assume the base has the same footprint. The base is the part that must remain completely supported.
Confirm the usable top depth
A product's overall depth can include rounded edges, bevels, lips or decorative trim. Ask how much flat surface is truly available. The monitor feet should rest on the flat structural area, not partly on a curved edge. If a riser has a raised rear lip, measure the space in front of that lip.
Test with a paper template
Draw the monitor base at full size on paper or cardboard, cut it out, and place it on the planned riser dimensions. This simple test shows whether the corners or V-shaped legs overhang. It also lets you position the template on the desk before purchasing anything.
How desk depth changes the answer
A deeper riser is not automatically better. Every extra centimetre extends farther into the work surface or pushes the screen toward the wall. On a shallow desk, that can reduce the area available for the keyboard, mouse and forearm support.
The Canadian Centre for Occupational Health and Safety recommends treating monitor distance as a starting range that must be tailored to the person and task. It describes a typical viewing distance of about 40 to 74 cm. OSHA gives a broader preferred range of about 50 to 100 cm and stresses that the text must be readable without leaning forward. The riser should help you reach a comfortable distance, not force the monitor closer simply because the base fits.
Before choosing depth, sit in your normal position, place the keyboard where your shoulders can remain relaxed, and measure the remaining space behind it. Compare this usable zone with the riser and monitor base together.
Plan for cables and wall clearance
Leave a natural cable path
Power, display and accessory cables often leave the rear or underside of a monitor. They need room to bend gradually. A connector pressed hard against a wall, riser lip or desktop edge can loosen, place stress on the port or prevent the screen from tilting.
Arrange the cables before fixing clips or ties. Move the screen through its normal tilt range and confirm that the connectors do not pull. If the desk is height adjustable, raise and lower it through the full working range while watching the cable path.
Account for the wall
A deep riser near the back of a desk may leave no room for the monitor stand or cables to extend. Pulling the entire desk away from the wall can solve the issue, but it changes the room footprint and may expose cables. Measure the wall clearance as part of the setup, not after installation.
Depth for one monitor versus two
One monitor
With one screen, the base can usually sit near the middle of the riser. Depth is determined by that base and the required viewing position. Width still matters because the riser should not feel top-heavy or allow the base to sit close to a side edge.
Two monitors on separate stands
Measure both bases. If one is deeper, design around the larger footprint. Angling the screens inward can rotate the bases and increase the effective depth they need. Build the paper templates, rotate them to the intended angle, and measure the combined footprint.
If two large bases crowd the riser, a dual monitor arm may create a cleaner surface, but only after confirming screen weight, mounting pattern, desktop thickness and clamp clearance.
Height and depth must work together
A riser can be deep enough and still be ergonomically unsuitable if it places the display too high. CCOHS advises that looking upward for prolonged periods can be tiring and generally recommends positioning the screen at or slightly below the horizontal eye line. OSHA similarly recommends the top of the monitor at or slightly below eye level for many users.
Measure the screen height with the riser in place. If the monitor stand is already height-adjustable, the riser may be unnecessary. If you need storage rather than elevation, choose a low shelf that preserves the correct screen height.
Burotic's guide to monitor stand height explains the vertical check, while the guide to monitor riser width covers the side-to-side dimension.
What should fit underneath?
Many people choose a riser to store a keyboard, laptop or notebook. The outside depth does not tell you the usable storage opening. Measure the inside height, width and depth, including support blocks and crosspieces. A keyboard may fit by width but protrude because of its cable or wrist rest.
Do not push the riser deeper solely to create storage. Frequently used input devices should remain easy to reach and should not require repeated lifting around a low shelf. Storage is useful only when it supports the workflow.
A practical sizing method
- Measure the full depth and width of the monitor base.
- Mark the riser's flat usable surface, not only its outside dimensions.
- Create a full-size template of the base and test the intended angle.
- Place the keyboard and mouse where you can work with relaxed shoulders.
- Check the remaining desk depth and your viewing distance.
- Allow a gentle cable path and any required wall clearance.
- Confirm the screen height after adding the riser.
- Verify the riser's stated load capacity and installation instructions.
Worked examples
Base that is 8.5 inches deep
A riser with only 8.5 inches of flat surface leaves no practical tolerance for placement. A somewhat deeper flat surface would be easier to position safely. The amount depends on the edge design and the manufacturer's instructions, so confirm the actual usable area rather than relying on a nominal dimension.
V-shaped base on a shallow desk
The front legs may extend farther than the central post suggests. Rotate a paper template to the viewing angle and test it behind the keyboard. If the legs crowd the input zone, a compatible monitor arm can be more effective than a deeper shelf.
Wide riser with two monitors
Depth must support the deepest rotated base, while width must support both bases without placing them near the sides. Check both dimensions together. A long shelf is not automatically suitable if it is too shallow.
Common mistakes
- Choosing depth from screen diagonal alone.
- Measuring the stand post instead of the full base.
- Counting a bevel or lip as usable support area.
- Ignoring the keyboard and mouse zone.
- Forgetting cable connectors behind the monitor.
- Raising the screen above a comfortable height.
- Assuming a long shelf can carry any load.
- Using a riser that overhangs the desk or rocks on an uneven surface.
When a monitor arm is the better choice
Consider an arm when the base is too deep, the desk is shallow, you need frequent position changes or two stands occupy most of the riser. An arm does not remove the need for measurement. It transfers the fit questions to the clamp, desktop, wall clearance, screen weight and mounting pattern.
Compare the active Burotic Monitor Stand with the setup principles in the monitor stand versus monitor arm guide. Use the current product specifications for a purchase decision rather than estimating compatibility from a photograph.
Bottom line
The right monitor riser depth is the smallest flat, stable surface that fully supports the monitor base, preserves a comfortable viewing distance and leaves enough room for the keyboard, mouse and cables. Measure the base at its deepest points, test its actual angle with a template, and check height at the same time. If the required shelf crowds the desk, a deeper desk or compatible monitor arm may be the more practical solution.
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