Office Ergonomics Checklist for a Safe Workstation

Last updated: March 2026

You spend thousands on PPE for your crew. Hard hats, harnesses, steel toes. But your estimator has been hunched over a laptop in the site trailer for three years with a kitchen chair and a folding table. Your office admin complains about neck pain every week. Your PM squints at a monitor that sits six inches too low.

Here is the uncomfortable truth: you need an office ergonomics checklist as badly as you need your FLHA process. Musculoskeletal injuries (MSIs) do not just happen on the job site. They happen at desks, too. And they account for roughly 30% of all time-loss claims with WorkSafeBC, costing over $2 billion in claims between 2019 and 2023 in B.C. alone. Your office staff are not exempt from those numbers.

We help contractors build safety programs every week, and the office is almost always the blind spot. This office ergonomics checklist gives you a practical, item-by-item guide to setting up safe workstations for the people who keep your business running from behind a desk.

Office ergonomics is the practice of setting up workstations so employees can work comfortably without developing neck pain, back strain, eye fatigue, or repetitive strain injuries. Even in safety-focused industries like construction and oil and gas, your office staff, project managers, and estimators spend hours at desks, and poor workstation setup is one of the most common sources of preventable injury claims.

This checklist covers everything you need to evaluate and fix in an office workstation, from chair height to monitor placement to keyboard positioning.

Why Does Office Ergonomics Matter for Contractors?

Office ergonomics is the practice of setting up a workstation so the desk, chair, monitor, keyboard, and lighting match the worker's body and tasks, reducing strain and preventing musculoskeletal injuries.

Most contractors think ergonomics is a field problem. They picture heavy lifting, awkward postures on scaffolding, repetitive tool use. They are wrong.

Your admin team, estimators, and project managers sit for 6 to 10 hours a day. They type, click, and stare at screens. They crane their necks to read drawings. They balance phones on their shoulders while writing emails. These are all ergonomic hazards, and provincial regulators treat them the same as any other workplace hazard.

Under Alberta's OHS Code (Part 14) and WorkSafeBC's Occupational Health and Safety Regulation (Part 4), employers must identify MSI risk factors, assess the risk, and implement controls for every work environment. That includes the front office, the site trailer, and the estimating room.

A 15-person electrical contractor we worked with in Edmonton discovered this the hard way. Their office coordinator filed a WCB claim for chronic wrist pain after two years of working on a laptop at a table with no external keyboard or mouse. The claim was accepted. The company's premiums went up. The fix would have cost $150.

If your team includes people who work at desks, you need an ergonomics plan as part of your safety program. Here is where to start.

What Should You Check on the Chair?

The chair is the foundation of an ergonomics desk setup. Get this wrong and nothing else matters. Here is what to check:

• Seat height adjustable: The worker's feet should be flat on the floor with thighs roughly parallel to it. If their feet dangle, the chair is too high. If their knees are above their hips, it is too low.
• Seat depth: Two to three finger-widths of space between the front edge of the seat and the back of the worker's knees. A seat that is too deep puts pressure behind the knees and cuts off circulation.
• Lumbar support: The backrest should follow the natural curve of the lower back. If the chair does not have built-in lumbar support, a small cushion or rolled towel works. This is not optional for anyone sitting more than two hours a day.
• Armrests (if present): Adjusted so the worker's shoulders stay relaxed and elbows rest at roughly 90 degrees. Armrests that are too high push the shoulders up. Too low and the worker leans to one side.
• Swivel base: The chair should swivel and have casters. Reaching and twisting from a fixed chair is a direct path to back strain.

If you are furnishing a site trailer or small office, skip the $50 task chairs from the big box store. A decent adjustable office chair costs $200 to $400 and lasts years. Compare that to a single WCB claim.

How Should the Monitor Be Positioned?

A monitor that is too low, too high, or too close causes neck pain, eye strain, and headaches. This is one of the most common problems we see in contractor offices, especially in site trailers where people work on laptops with no external monitor.

According to CCOHS, the top of the screen should be at or slightly below eye level, with the center of the screen about 15 to 20 degrees below your horizontal line of sight. Placing a monitor too high (above eye level) causes significantly more neck and shoulder strain than placing it slightly too low.

Here is the ergonomics screen height and ergonomics monitor checklist:

• Monitor height: Top of the screen at or slightly below the worker's eye level when sitting upright. If using a laptop, this almost always requires a laptop stand plus an external keyboard and mouse.
• Monitor distance: About an arm's length away (roughly 50 to 70 cm). The worker should be able to read text without leaning forward.
• Monitor tilt: Tilted back slightly (10 to 20 degrees) so the screen is perpendicular to the worker's line of sight.
• Glare check: Position the monitor perpendicular to windows, not facing them or with the worker's back to them. Glare forces squinting and forward leaning.
• Dual monitors: If the worker uses two screens equally, center them so the bezel sits directly in front of the worker. If one is primary, center that one and angle the secondary to the side.

Workers who wear bifocals or progressive lenses are a special case. They tend to tilt their heads back to use the reading portion of their lenses, which strains the neck. For these workers, the monitor should sit lower than the standard guideline, and they may benefit from dedicated computer glasses.

What Is the Right Keyboard and Mouse Position?

The ergonomics keyboard position setup is where most site trailers and small offices fall apart completely. We have seen estimators working with keyboards on top of stacked binders. We have seen PMs using trackpads for eight hours straight. These setups create wrist, forearm, and shoulder problems that build slowly and then hit all at once.

• Keyboard height: The keyboard should sit at a height where the worker's elbows are at roughly 90 degrees and wrists are straight (not bent up or down). If the desk is too high, a keyboard tray helps. If the desk is too low, raise it.
• Keyboard tilt: Flat or with a slight negative tilt (front edge higher than back). Those flip-out feet on the back of most keyboards? They actually increase wrist extension and make things worse. Leave them folded.
• Mouse placement: Right next to the keyboard at the same height. Reaching out to the side for a mouse strains the shoulder. If the worker uses a number pad rarely, consider a compact keyboard to bring the mouse closer.
• Wrist position: Wrists should float, not rest on the desk edge. Wrist rests are for pauses between typing, not for resting on while typing. Pressure on the underside of the wrist compresses the carpal tunnel.

For anyone spending more than four hours a day typing, an external keyboard and mouse are not luxuries. They are basic ergonomic controls, the same way hearing protection is a basic control on a noisy site.

How Should the Desk and Work Surface Be Set Up?

The desk ties everything together. If the surface height is wrong, every other adjustment becomes a workaround.

• Desk height: The work surface should allow the worker's forearms to be roughly parallel to the floor when typing. Standard desk height (around 73 to 76 cm) works for most people between 5'8" and 6'0". Shorter or taller workers may need an adjustable desk or a keyboard tray.
• Leg clearance: Enough space under the desk for the worker to stretch their legs and change positions. No boxes, printers, or space heaters under the desk.
• Frequently used items within reach: Phone, notepad, reference documents should be within arm's reach without twisting or leaning. Think about it the way you set a table: the things you use most go closest.
• Document holder: If the worker references paper documents while typing, a document holder positioned next to and at the same height as the monitor reduces neck rotation.

Sit-stand desks are worth considering if the budget allows ($300 to $700 for a decent converter). Research shows that alternating between sitting and standing every 30 to 60 minutes reduces back discomfort. But a sit-stand desk is not a substitute for a properly adjusted regular desk. Fix the basics first.

What About Lighting and Environment?

Lighting gets overlooked in office ergonomics, but it drives some of the worst posture habits. A worker who cannot see their screen clearly will lean forward. A worker dealing with overhead glare will hunch. Both lead to strain.

• Overhead lighting: Should not reflect directly off the monitor screen. Reposition the desk or monitor if it does.
• Task lighting: A desk lamp for reading paper documents. Relying on overhead fluorescents for close reading causes eye strain and forward leaning.
• Window glare: Blinds or shades to control natural light. The monitor should be perpendicular to the window, not facing it.
• Screen brightness: Should roughly match the brightness of the surrounding environment. If the screen looks like a light source in the room, it is too bright. If it looks dull and grey, it is too dim.
• Temperature: Cold offices cause muscle tension. If your site trailer gets cold in winter, that is an ergonomic factor. Tense muscles are more prone to strain.

What Habits Make the Biggest Difference?

Even a perfectly set up workstation will cause problems if the worker sits in the same position for eight hours straight. The Canadian Centre for Occupational Health and Safety (CCOHS) recommends building movement into the workday.

• Micro-breaks: Every 20 to 30 minutes, look away from the screen for 20 seconds and shift your sitting position. Stand up and stretch briefly every 60 minutes.
• 20-20-20 rule for eyes: Every 20 minutes, look at something 20 feet away for 20 seconds. This reduces eye fatigue from sustained close focus.
• Vary tasks: Alternate between typing, phone calls, filing, and walking to the printer. Task variety changes your posture naturally.
• Stretching: Neck rolls, shoulder shrugs, wrist circles, and standing hamstring stretches. These take 60 seconds and prevent tightness from building up over the day.

These are not nice-to-haves. For your admin staff sitting in a small company office or site trailer, breaks and movement are controls, the same way ventilation is a control for chemical exposure. Build them into the expectation, not just the suggestion.

If you are building or updating your safety program and want to make sure your office staff are covered, Safety Evolution can help. We build done-for-you safety programs that cover every worker, not just the ones on the tools.

The Complete Office Ergonomics Checklist

Print this out, walk through each workstation, and check every item. This is your office ergonomics checklist in one place.

Chair

• ☐ Seat height adjustable; feet flat on floor, thighs parallel
• ☐ Seat depth allows two to three finger-widths behind knees
• ☐ Lumbar support contacts lower back curve
• ☐ Armrests (if used) allow shoulders to stay relaxed
• ☐ Chair swivels and rolls freely

Monitor

• ☐ Top of screen at or slightly below eye level
• ☐ Screen about arm's length away (50 to 70 cm)
• ☐ Tilted back slightly (10 to 20 degrees)
• ☐ No glare on screen from windows or overhead lights
• ☐ Dual monitors centered or primary monitor centered

Keyboard and Mouse

• ☐ Keyboard at elbow height; wrists straight when typing
• ☐ Keyboard feet folded flat (no positive tilt)
• ☐ Mouse next to keyboard at same height
• ☐ Wrists not resting on desk edge while typing

Desk and Work Surface

• ☐ Forearms parallel to floor when typing
• ☐ Adequate leg clearance underneath
• ☐ Frequently used items within arm's reach
• ☐ Document holder beside monitor (if applicable)

Lighting and Environment

• ☐ No direct glare on monitor from lights or windows
• ☐ Task lamp available for reading paper documents
• ☐ Screen brightness matches room lighting
• ☐ Room temperature comfortable; no drafts on neck or shoulders

Work Habits

• ☐ Micro-breaks every 20 to 30 minutes
• ☐ Stand and stretch every 60 minutes
• ☐ 20-20-20 rule practiced for eye health
• ☐ Tasks varied throughout the day

Use this checklist during workplace ergonomics assessments and annual workstation reviews. It takes 30 to 60 minutes per workstation and most fixes cost under $300.

How Do You Make This Part of Your Safety Program?

Running through this checklist once is good. Making it part of your system is better. Here is how contractors actually make office ergonomics stick:

1. Add it to your onboarding process. When a new admin, estimator, or PM starts, run the checklist on their workstation the same day. Do not wait for them to complain. Use your employee orientation and onboarding package to make this automatic.
2. Schedule annual workstation reviews. Things change. People swap desks. Monitors get moved. A yearly walk-through catches drift before it becomes a claim.
3. Include office workers in your ergonomics training. Most contractors only train field staff on ergonomics. Your office people need it too, especially if they have never had a proper workstation assessment.
4. Document it. Alberta OHS requires you to keep records of MSI hazard identification and controls. The completed checklist is your documentation. File it the same way you file FLHA records.
5. Watch for early signs. If someone mentions wrist soreness, neck stiffness, or back pain, do not wait. Check their workstation that day. Early intervention is cheaper than a WCB claim.

The blunt truth: most contractors have a 50-page safety manual that covers everything from confined space entry to fall protection, and exactly zero pages about the person who sits at the front desk for eight hours a day. That gap is a liability. It shows up in WCB claims, and it shows up in audits.

If you want expert help building a complete safety program that covers your whole team, Safety Evolution is your done-for-you safety department. We do not just hand you templates. We build the program, train your people, and keep it current.