Home Addition Slab – Sydney Dr, Fort Collins, CO

Project Summary

On Sydney Dr in Fort Collins, we have recently poured a reinforced concrete slab to support a new home addition. Unlike patios or driveways, additional slabs must be built to strict standards so they can safely carry all the weight of new living space. This project required solving a sloped yard, working around tight access for equipment, and preparing a surface that would accept durable foam insulation panels before the structure was built.

Design Goals & Client Priorities

The homeowner wanted a durable slab that would:

Tie into the existing house foundation without settling and structure issues.
Provide an accurate level and square base for framing.
Accommodate foam panels to be on top for insulation.
Be built strong enough for Colorado’s freeze and thaw climate.
Overcome challenges of limited site access and yard slope.

What We Did

Excavation & Grading

Our team carefully excavated and compacted the sloped area to ensure stability. Proper grading was critical to align and attach the new slab with the home’s existing foundation.

Forming & Reinforcement

Built tight forms to match the additional footprint.
Installed #3 rebar on a grid for foundation and structure strength.
Dowels were tied into the existing house foundation to create a strong connection.

Concrete Pour

Used 4000 PSI fiber-reinforced concrete from a reputable cement plant located in Loveland, the best choice for structural slabs in Fort Collins.
Because of limited access, our crew managed a staged pour, distributing the mix evenly.
Laser-leveled the surface for precision, ensuring the foam panels could be installed seamlessly.

Finishing & Durability

Added proper control joints to prevent concrete cracking .
Smoothed and edged the slab, leaving it ready for the next stage of construction.

Project Results

The finished home addition slab gave the homeowner:

A durable foundation engineered for new living space.
A precised level, reinforced surface ready for insulation panels.
A long-lasting concrete slab designed for Northern Colorado weather conditions.

Despite slope, tight access and other challenges, this project was completed on time and met all homeowner requirements.

Before & After Gallery

FAQ: Home Addition Slabs in Fort Collins

Do I need a special slab for a home addition?
Yes, slabs must be reinforced and tied into your existing foundation to safely carry the new structure’s weight.

What concrete strength is best for house additions in all Colorado?
We use 4000 PSI fiber-reinforced concrete for durability against all four seasons and structural loads.

Can you pour a slab with limited access for equipment?
Yes. Our trained crew uses compact equipment, staged pours, and hand-finishing techniques to complete projects even on tight sites.

Learn More

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