OpenWall — Sealed Wall Removal Drawings & Permits

Prefer an engineer to visit first?

$649 CAD, all-in. A licensed P.Eng visits your property, checks the existing framing and what's below the new supports, and issues the sealed drawings — with no “not investigated” assumptions. Available within 30 km of Mississauga.

Site visit by a licensed P.Eng from Exceptional Engineering
Spans and existing support conditions verified on site
Sealed two-sheet drawing set included in the $649 total

How it works

Send your request below — nothing is charged.
We confirm your address is within 30 km of Mississauga and email you a secure link to pay a $100 booking deposit. The deposit is part of the $649 total, not an extra fee.
We contact you to arrange a visit time that suits you.
Our P.Eng visits your property.
You pay the remaining $549 after the visit — we send a separate secure payment link.

Deposit terms: your deposit is fully refundable if we are unable to carry out the visit, or if you cancel at least 24 hours before it is scheduled. Once the visit has taken place it is non-refundable and counts toward your total.

Your name

Email

Phone

Property address

City & postal code

About the opening (optional)

I understand the site visit with sealed drawings is $649 CAD all-in and only available within 30 km of Mississauga, that I'll pay a $100 booking deposit once my address is confirmed in range, and that the remaining $549 is paid after the visit. I have read the deposit terms above.

Deposit received — your visit is reserved

Your $100 booking deposit is paid (reference ). We've emailed you a confirmation and will contact you shortly to arrange a time. The remaining $549 is paid after the visit — we'll send a separate secure link.

Request received

We've emailed you a confirmation. Once we confirm your address is in range we'll email you a secure link for the $100 booking deposit — nothing is charged until you pay it. The remaining $549 is paid after the visit.

Opening & location

Basic geometry of the wall opening being created.

Opening length (in) = 3.94 ft = 1.20 m

S1 — span, side 1 (in) = 6.56 ft = 2.00 m

S2 — span, side 2 (in) = 6.56 ft = 2.00 m S1 / S2 = framing spans landing on a load-bearing element (existing beam, wall, etc.), each side

Floor location of opening

Limited to 2 floors above grade for now

Support load path

Traces what's below the new supports (A & B), one floor at a time, down to the footing.

Opening & load path — isometric

Scales roughly with S1 / S2 / opening length, and extends down through the floors your load path actually travels.

S1 bay S2 bay New footing Existing wall / support

Beam design

Override span (e.g. add bearing length)

Design load, w1 (kPa)

Beam material

Technical basis & assumptions

Tributary width = –, design span L = –, w = – kN/m, M max = – kN·m, V max = – kN, Δ allow = – mm.
Design span L = opening length (post A to post B). Tributary width = (S1 + S2) / 2 — half of each joist span reaches the beam.
Load assumption: 0.5 kPa dead + 1.9 kPa live (ordinary residential opening) — confirm actual loading.
Sawn lumber: SPF No.2 or better, Fb = 11.8 MPa, E = 9500 MPa (CSA O86, fixed).
LVL: West Fraser 2.0E 3100Fb grade, Fb = 21.4 MPa (3100 psi), E = 13 800 MPa (2.0E6 psi) — confirm against current span tables.
Steel: Fy = 350 MPa (CSA G40.21 350W), section properties from standard AISC/CISC tables.
LVL section — S = – mm³, I = – mm⁴ (–).
Steel section — Sx = – mm³, Ix = – mm⁴.

Column design

Column type

Technical basis & assumptions

Axial load / column = – kN (beam reaction, V max). Checks use CSA O86 (wood) / CSA S16 (steel) slenderness methods referenced by the OBC — preliminary check, not a stamped design.
Wood: SPF No.2 or better, Fc = 11.5 MPa, E05 = 6500 MPa. Unbraced length L = 2.4 m, Ke = 1.0 — fixed.
Steel HSS: Fy = 350 MPa (CSA G40.21 350W). Unbraced length L = 2.4 m, K = 1.0 — fixed. A, r from typical published CSA/CISC values.
Wood — Area = – mm², Cc = –, Kzcg = –, Kc = –.
Steel — Area = – mm², r = – mm, KL/r = –, λ = –.

Footing design

Allowable soil bearing, qa (kPa) confirm against geotechnical report

Load, V max (kN)

–

Area required (m²)

–

Footing size

–

Reinforcement: 15M bars top & bottom, each way, at ~250 mm (10") o.c. Minimum cover: 75 mm at the bottom (soil face), 25 mm minimum elsewhere — read from your sketch, confirm against current code cover requirements.

Important safety & design notes

Please read these before any work begins. They apply to every design this tool produces.

What this design assumes

The opening is inside the building, in a wall carrying floor loads only — not a roof, snow, deck or garage load.
Loading is ordinary residential: 0.5 kPa dead load and 1.9 kPa live load. Tile, stone, masonry, water features and unusually heavy finishes are not covered.
The wall carries gravity load only. It is assumed not to be a shear wall and not to provide lateral, wind or earthquake resistance.
Lumber is SPF No. 2 grade or better; steel is CSA G40.21 350W.
The structure below the opening — existing beams, columns, walls and footings — has enough capacity for the added load. This tool does not check it.
Soil under any new footing can carry the bearing pressure entered. No soil testing has been done.

Before and during construction

Temporary shoring is required. The existing structure must be properly supported before any part of the wall is removed. This is the contractor's responsibility.
Verify every dimension on site. Do not scale drawings.
Provide minimum 89 mm (3½") bearing at each end of the new beam.
Where a new column passes through a floor without landing on an existing beam, carry it continuously down to the basement slab or a new footing. Keep wood clear of moisture.
New footings must bear on undisturbed soil. Stop work and get advice if you find fill, soft ground or water.
A building permit is normally required. Check with your municipality before starting.

Stop and get professional advice if

Anything on site differs from what you entered here.
The wall supports a roof, a stair, a bearing point from above, or an engineered floor system.
You find cracking, sagging, rot, insect damage or previous alterations.
The building is older and may contain asbestos or lead — these must be assessed before demolition.

This tool gives preliminary sizes only. It is not a stamped design and must not be used for construction or submitted for a permit on its own. A licensed professional engineer must review the actual conditions and seal the drawings first.

Output summary

Snapshot for the job sheet.

Get a stamped, permit-ready drawing

Everything above is a preliminary sizing tool. If you want a sealed drawing you can submit for permit, a licensed Ontario professional engineer will review this design and issue a stamped two-sheet set.

Sealed structural drawing set

2 sheets — plan & design data (S01), construction notes & summary (S02)

$—

Reviewed and sealed by a licensed P.Eng (PEO)
Prepared to Ontario Building Code, CSA O86 & CSA S16
Emailed to you as a PDF within 1 business day
Includes full construction notes and design assumptions
Full refund if your opening turns out to be outside what this service covers

Your details

Your name

Your email — we send the drawing here

Phone (optional)

Property address

City / Municipality

Where is the opening in the property?

Anything we should know? (optional)

Payment received — thank you

Your design is now with our licensed professional engineer for review. Your sealed drawing set will be emailed to within 1 business day.

Reference: — quote this in any correspondence.
Questions? info@theexceptionals.ca or (905) 598-4851.

You'll be taken to a secure Stripe payment page. Nothing is charged until you complete it, and your drawings are only produced after payment is confirmed. Drawings are prepared and sealed by Exceptional Engineering — a licensed professional engineer reviews every design before a seal is applied. Questions: info@theexceptionals.ca or (905) 598-4851.

OpenWall Pro — for professionals

If you're a licensed P.Eng or a BCIN-qualified designer, get a drawing ready to review and seal in seconds — in your own title block, with your firm name and logo — and save yourself hours of drafting time. Not for homeowners or contractors: if that's you, use the sealed drawing option above instead.

Your contact details

Your name

Your email — we send the drawing here

Phone (optional)

Property address

City / Municipality

Where is the opening in the property?

Anything we should know? (optional)

Credential & title block

Licence number

Firm name

Firm phone

Firm email

Logo (optional)

Drawing in your title block

2 sheets · unsealed · you review and seal

$—

Payment received — thank you

Your drawing request is being prepared in your own title block. It will be emailed to within 1 business day.

Reference: — quote this in any correspondence.
Questions? info@theexceptionals.ca or (905) 598-4851.

Engineer review & seal

Internal. Not shown to customers.

Project / job number

Client name

Issue status

Not sealed. Apply only after reviewing this specific design.

I am the engineer of record. I have personally reviewed the inputs, assumptions, calculations and member selections for this specific project, and I take professional responsibility for them.

Need a change to something you already ordered?

Use your order reference — it was in your confirmation email.

Need a refund instead?

Full refund if the opening turns out to be outside what this service covers, or can't be designed from the information supplied. Also available any time before your sealed drawings are issued, or if we miss our 1-business-day / 5-business-day delivery window. Once sealed drawings have been issued the fee is non-refundable, except for our own error or omission. Approved refunds go back to your original payment method within 5–10 business days.

Order reference

Email used on the order

Why are you requesting a refund?

Request received

We'll review it and follow up by email.

Prefer an engineer to visit first?

Opening & location

Support load path

Opening & load path — isometric

Beam design

Column design

Footing design

Important safety & design notes

What this design assumes

Before and during construction

Stop and get professional advice if

Output summary

Get a stamped, permit-ready drawing

Your details

Your contact details

Credential & title block

Terms & limitations

Engineer review & seal

Need a change to something you already ordered?

Need a refund instead?