Construction Site Safety Signs Ontario — OHSA Compliant Signage

Construction site safety signs are legally required on every Ontario construction project under the Occupational Health and Safety Act (OHSA). Missing or non-compliant signage is one of the top reasons for Ministry of Labour stop-work orders — and fines start at $500 per missing sign. Niagara Stands Out produces OHSA-compliant construction safety signs starting at $9.99 with same-day production.

From project information boards to PPE requirement signs, hazard warnings to muster point markers — we print everything a construction site needs to stay compliant and keep workers safe.

Ontario Construction Sign Requirements (OHSA)

Ontario Regulation 213/91 (Construction Projects) under OHSA mandates specific signage. Here is what every site needs:

Mandatory Signs

• Project Information Board (s.11): Must display project name, constructor name, address, and phone. Posted at every entrance to the project.
• Notice of Project (s.6): Filed with MOL if project exceeds $50,000 or involves specific hazards. Copy must be posted on site.
• Mandatory PPE Signs: Hard hat, safety boots, high-visibility vest, eye protection required areas clearly marked.
• Hazard Warning Signs: Open excavation, overhead hazards, confined space, electrical hazard, fall hazard.
• Emergency Information: First aid station location, emergency assembly (muster) point, emergency contact numbers.
• WHMIS Signs: Where controlled products are used or stored. GHS-compliant pictograms and signal words.

Construction Safety Sign Products & Pricing

Product	Material	Size	Price
Standard Warning Sign	Coroplast	18x24"	$9.99
Standard Warning Sign	Aluminum	18x24"	$19.99
PPE Required Sign	Aluminum	18x24"	$24.99
Project Information Board	ACM/Dibond	24x36"	$89.99
Large Project Board	ACM/Dibond	36x48"	$149.99
Emergency Muster Sign	Reflective Alum	24x36"	$39.99

Complete Site Safety Kits

Save time and money with pre-built compliance kits:

Need AODA, MTO, or DOT-compliant lettering? Our compliance lettering specialists have you covered.

• Starter Kit ($199.99): Project board + 6 PPE signs + 4 hazard signs + muster sign + first aid sign. Covers small residential/commercial projects.
• Full Site Kit ($399.99): Large project board + 12 PPE/hazard signs + emergency signs + WHMIS storage signs + confined space signs. For mid-size commercial.
• Multi-Site Contractor Kit ($699.99): 3 complete site kits with reusable project boards (dry-erase or slide-in). For contractors running multiple projects.

Not sure what you need? Send us your project scope and we will build a custom kit. No upselling — just what OHSA requires.

Materials Built for Construction

• Coroplast (Corrugated Plastic): Lightweight, weather-resistant, affordable. Best for temporary signage on shorter projects. 1-2 year outdoor life.
• Aluminum (0.040"): Durable, rigid, professional. 10+ year outdoor life. Best for permanent or high-traffic locations. Scratch and dent resistant.
• ACM/Dibond (Aluminum Composite): Premium rigid material for project information boards. Flat, professional appearance. Excellent for large signs.
• Reflective Aluminum: 3M Engineer Grade reflective sheeting. Visible at night under headlights. Required for traffic-adjacent signs.
• Magnetic: Attach to metal surfaces (equipment, containers, fences). Repositionable as site layout changes.

Common MOL Inspection Deficiencies We Fix

1. No project information board: Most common deficiency. We produce same-day.
2. Missing PPE requirement signs: Every zone with specific PPE requirements must be marked.
3. No emergency assembly point: Must be clearly marked and visible from all areas of the site.
4. Faded or damaged signs: Signs must be legible. Sun-bleached coroplast needs replacement.
5. Missing excavation warnings: Open excavations must have warning signs and barriers.
6. No confined space identification: Every confined space must be identified with signage.

MOL inspector coming? Call 289-228-7021 for same-day construction sign production.

Service Areas

• Niagara Region: Same-day pickup or delivery. Niagara Falls, St. Catharines, Welland, Fort Erie, Thorold, Port Colborne.
• Hamilton/Burlington: Next-day delivery standard. Same-day available.
• GTA: 1-2 business day shipping. Rush courier available.
• All Ontario: 2-3 business day delivery. Free shipping on orders over $200.

Frequently Asked Questions

What safety signs are required on Ontario construction sites?

OHSA and O. Reg. 213/91 require project information signs, mandatory PPE signs, hazard warning signs, emergency muster point signs, first aid location signs, and WHMIS/TDG signs where applicable. Municipal permits must also be posted.

How much do construction safety signs cost?

Individual safety signs start at $9.99 for coroplast and $19.99 for aluminum. Project information boards start at $89.99. Complete site safety kits start at $199.99. Volume discounts for multi-site contractors.

What size do construction signs need to be?

OHSA requires signs to be clearly visible and legible. Standard sizes are 18x24 inches for warning signs and 24x36 or 36x48 inches for project information boards. We recommend reflective materials for 24-hour visibility.

Are your signs OHSA compliant?

Yes. All signs meet Ontario Health and Safety Act requirements, CSA Z321 standards, and ANSI Z535 colour/symbol conventions. Bilingual (English/French) options available for federal projects.

Can you make custom construction signs?

Yes. Custom project boards with your company name, project details, and emergency contacts. Custom hazard signs for site-specific dangers. Custom PPE requirement signs for specialized work zones.

How fast can I get construction site signs?

Same-day production for standard signs ordered before 11 AM EST. Custom project boards take 2-3 business days. Emergency orders for MOL inspections — call 289-228-7021.

Keep your site compliant. Shop construction safety signs or call 289-228-7021.