Structural Drawings

Structural drawings for residential projects

Construction Drawing Structural Engineers in St. Catharines, ON

We prepare structural drawings for St. Catharines renovations, additions, repairs and new homes. Plans and details show builders the beams, posts, foundations and connections needed, coordinated with your construction.

Home renovationsDrawings for walls, beams, posts, and other structural changes.
House additionsPlans showing new framing, foundations, and connections to the existing home.
New residential constructionStructural plans and details developed for the proposed building.

Detailed service overview

Structural Drawings engineering scope in St. Catharines

Structural drawings explain how the work is supported, connected and reinforced. We prepare plans and details for renovations, additions, repairs and new homes, coordinating the engineering with the rest of the project.

Your project and existing structure

  • The proposed layoutArchitectural plans and structural drawings need to agree on openings, levels, and support positions.
  • Existing constructionAvailable plans and site information help establish what remains and what changes.
  • Engineering calculationsCalculations support the design decisions shown in the drawings, where required for the work.

The engineering details

  • Construction detailsMember sizes alone are not enough. Bearings, connections, and supporting construction also need to be explained.
  • Permit and contractor questionsThe package should identify the structural work clearly. Other parts of a permit submission may be prepared separately.

What you receive

  • Structural plansLocations and requirements for the engineered elements.
  • Sections and detailsConnections, bearings, reinforcement, and other construction information.
  • Supporting documentationCalculations or engineering notes as required for the agreed work.
  • Drawing revisionsCoordinated updates for included design changes or structural review responses.

What this means for your project

Give your builder drawings that explain the structural work, including its connections.

Local building information: City of St. Catharines building permit information

Residential engineering services

Projects we prepare drawings for

Home renovations

Drawings for walls, beams, posts, and other structural changes.

House additions

Plans showing new framing, foundations, and connections to the existing home.

New residential construction

Structural plans and details developed for the proposed building.

Specific house modifications

Details for new openings, altered stairs, or changes to existing framing.

Foundation work

Drawings explaining designed footings, walls, reinforcement, and connections.

Structural repairs

Repair details that translate the engineering design into construction information.

Revisions to a design

Updates where project changes or structural review comments affect the drawings.

How we work with you

  1. Discuss your project

    We review the changes you want to make and the plans or information already available.

  2. Assess and design

    We review the building or site information and design the structural elements your project needs.

  3. Prepare the drawings

    The agreed package explains the designed members, supports, and connections.

  4. Address project questions

    Any included permit responses, contractor questions, or design revisions are handled as the project progresses.

Homeowner questions

Structural Drawings: questions for St. Catharines homeowners

What projects can structural drawings cover?

We prepare structural drawings for renovations, additions, repairs and new residential construction. The package may address a single opening or a broader framing and foundation design, depending on what you are building.

What is shown in the drawing package?

It shows the designed members, supports, reinforcement and connections needed for the structural work. Plans establish locations, while sections and details explain levels and attachments that a floor plan cannot show clearly.

Do structural drawings replace architectural plans?

No. Structural drawings explain support, while architectural plans address other aspects of the building design. The two need coordination where room layouts, openings and levels affect beams, walls or foundations in the proposed work.

Can drawings be prepared without original house plans?

Yes, but the design needs reliable information about the existing construction it depends on. Measurements and accessible framing can help establish that information, while concealed connections or footings may require further investigation.

Do the drawings include calculations?

Calculations support the structural design, with the information provided matched to the project’s requirements. A permit reviewer may request specific supporting calculations, while the builder primarily needs clear plans and construction details.

Can the drawings be used for a permit submission?

Structural drawings can form part of a permit submission where engineering documentation is required. They address the structural work, while other plans or information may be needed for the rest of the project.

Can the contractor suggest different members or details?

Yes. A defined alternative can be reviewed for its structural effects before it replaces the design. A different beam needs suitable capacity, connections and bearings, not simply similar dimensions to the original specified member.

Do permanent drawings include temporary support?

Temporary support during construction may require separate engineering from the finished structural design. Removing a bearing wall changes support before the replacement beam is complete, so the construction-stage arrangement needs appropriate consideration.

Serving homeowners in St. Catharines

Hamilton Structural Engineers provides structural drawing services for homeowners in St. Catharines.

Discuss your home project in St. Catharines

Tell us what you want to change, build or have assessed. We can help identify the structural engineering needed for your St. Catharines home.