Minneapolis neighborhood
Hillside and multi-level decks in Bryn Mawr (55405)
Bryn Mawr sits west of downtown between Theodore Wirth Park, Bassett Creek and I-394, where older homes climb wooded hillsides and back yards often fall away from the house.
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Bryn Mawr at a glance
Building decks down the slopes of Bryn Mawr
On a Bryn Mawr hillside lot, the back door can sit well above the yard, and the yard itself may keep falling toward the park or the creek. A single flat deck at that height feels like a balcony and leaves a dark, damp space underneath. Stepping the deck in two or three levels, each closer to the ground, often works better: an upper landing at the door, a main level for dining and a lower level near the lawn. Each level needs its own footings dug below frost into sloped soil.
Tall posts on a slope are where we see most of the problems. Footings poured on the downhill side sometimes sit in loose fill, and very tall posts with no bracing let the deck sway. We dig to undisturbed soil, use posts sized for the height, and add knee bracing or a lateral connection to the house. Under an upper level, a drainage system can turn the shaded space into dry storage or a small patio. Cable rails keep the wooded view open. Talk to us before you sketch anything, because the slope decides a lot.
Slope and height issues on Bryn Mawr decks
Decks that sway when people walk
Tall, unbraced posts let a deck rock side to side. We add diagonal bracing, upsize posts where needed and tie the frame to the house with lateral load hardware rated for the job.
Downhill footings in loose fill
Slopes often hide fill dirt that keeps settling for years. We dig past it to firm soil and below 42 inches, so the downhill posts stay exactly where we set them.
Stairs that run a long way down
Hillside stairs often need a landing partway. We break long runs with level landings, match every riser and add handrails on both sides for the icy months.
Shady, wet ground under the deck
Water dripping through an upper deck keeps the ground below muddy and dark. An under-deck drainage system catches it and sends it to a gutter, leaving a dry spot for storage or seating.
Deck services Bryn Mawr homeowners call us for
Typical prices for these jobs in Bryn Mawr
Ranges from 2026 Twin Cities projects. Your price comes in a written scope after we see the site.
| Service | Typical range | Priced |
|---|---|---|
| Multi-Level Deck Building | $54 to $104 | per square foot installed |
| Second-Story and Walkout Decks | $63 to $118 | per square foot installed |
| Deck Footing and Post Repair | $465 to $1,290 | per footing |
| Under-Deck Drainage and Ceilings | $9.60 to $24.80 | per square foot |
| Cable Railing Installation | $118 to $247 | per linear foot |
| Deck Stair Building and Repair | $1,460 to $6,920 | per stair run |
Deck questions from Bryn Mawr
Can you build a multi-level deck on a steep Bryn Mawr back yard?
Yes, and the slope is usually why people ask. We measure the grade, then plan levels that step down with it so no single part sits too high. Each level gets footings below frost in firm soil, and stairs between levels get landings where the drop is long. We handle the drawings and permit, which the city will want for a deck like this.
Why does my tall Bryn Mawr deck shake when people walk across it?
Height plus thin, unbraced posts is the usual cause, sometimes along with a ledger that isn't tied tightly to the house. We check the post size, the bracing and the ledger connection, then add knee braces, larger posts or lateral hardware as needed. A stiff deck feels very different underfoot, even at the same height.
What railing keeps the wooded view from a Bryn Mawr deck?
Cable railing is a common choice here because thin horizontal cables nearly disappear against the trees. Glass panels work too, but they need cleaning and can collect pollen. Either one needs solid posts blocked into the frame, since tensioned cables pull hard on the end posts. We'll show you samples and talk through snow and upkeep.
Deck work in Bryn Mawr? Call any hour.
We are on the phone 24/7 and on site across Bryn Mawr every week. Tell us about the deck and we will set a visit.