30x35 RV Carport

This page is ordered around independence between vehicles, because two vehicles in one building are only stored if either can leave without moving the other.

The 30-foot width takes 1 service bay across, but the 35-foot length does not complete a full row once 8 feet of circulation is deducted — the depth is the binding dimension here.

Efficiency is the useful number here: 1,050 square feet of enclosed floor per service bay, against a 810-square-foot module. That leaves working slack around each position. Two operations of the same size can want opposite plans, so the arithmetic below is a starting point rather than a recommendation.

A 30 by 35 footprint is a mildly directional plan: 1,050 sq ft enclosed by 130 ft of wall, at a 1.2:1 length-to-width proportion. Along its 35 ft dimension it takes 1 run of service bays at 45 ft, leaving -10 ft over — the -10 ft is where the argument about this size actually happens. Owners who maintain their own coach need the working area to survive the vehicle being in the building. That is a width and wall-access decision made before the frame is ordered, not a fit-out decision made afterwards. Site drainage at the door threshold decides where water goes when a large door opens.

This footprint is planned as a coach bay with a working area kept for maintenance on the vehicle. At 1.17:1 the plan is close enough to square that neither width nor depth is doing the arguing; what decides the layout here is where the openings go, because no proportion is forcing a direction on the floor. Spent as a square 32 by 32 instead, the same 1,050 sq ft would stand 1 service bays across rather than 1, and would trade this plan's length for parallel access. That is the width-against-depth decision this footprint has already made. At this scale the building is usually operated by one or two people who know where everything is, so the plan can be loose and the doors matter more than the divisions. The longest internal travel on a 30 by 35 plan is about 46 ft corner to corner, and the shortest useful one is the 30 ft cross-run. For a a coach bay with a working area kept for maintenance on the vehicle that matters where rv service bay sits, because shortening the 30 ft run to serve it lengthens every trip along the 35 ft dimension. Vehicle height including roof equipment is measured rather than estimated before a door is specified.

Openings are the pinch point here. With 12 feet of spare width the gable cannot host 1 separate doors, so access is either shared or moved to the 35-foot sidewall. The corner nobody plans for is the one that fills first, which is an argument for planning it.

The vehicle door plus a personnel door on the bench side, so a working visit does not require opening the big door at all.

The gable clears roughly 22 ft after corner framing: one opening, not two. With one shallow rank the end wall is the whole access strategy.

35 ft is under one full 45-ft rank with circulation. 1,050 sq ft is small enough that the far end is still within reach of the main door.

No conventional spacing divides 35 ft; 3 bays at 11.7 ft is the nearest even division. Put the out-of-step bay at the door end and nothing else has to accommodate it.

The 30-ft span holds 1 service bays plus 12 ft — most of another position. With 0 ranks behind each other the width sets retrieval order: what goes in first comes out last.

The 12 ft left across the width is most of another service bay without being one. Given a purpose it becomes a bench and parts zone along one wall, positioned so it stays reachable with the coach inside; left undefined it becomes the strip everything ends up in.

Nominal bay division computes to 2 bays at about 17.5 feet, narrower than the 18-foot module — so frame lines land inside positions and the interior has to be set out from the columns. Neighbouring buildings, setbacks and the approach road often decide the orientation before the plan does.

A single row means nothing is trapped: every position faces the opening directly, which is this footprint's advantage over a deeper building of the same width. The plan should survive the day the largest item the operation owns has to come inside.

Extension is cheapest along the 35 ft dimension, where each added bay repeats work already framed; widening past 30 ft is a different frame rather than a longer one. Growing to 30 by 80 adds a 2th run of service bays — useful if the constraint is service bays rather than the -10 ft already spare at the far end.

Configured as a coach bay with a working area kept for maintenance on the vehicle, 30x35 is judged on whether the 0 service bays it holds match the operation, and on whether the 12 feet of spare width leaves the route this mode depends on.

• Does the work need two parked lanes side by side, or one lane and a genuine workbench run, or does it need a second lane that this 30-foot span cannot give?
• Is the 35-foot length being bought for depth, or for the repeated bays — two or three divisions, enough grain to place a partition but not to dedicate a bay?
• What is the vehicle's height with everything on the roof, plus a margin?
• Is there a straight approach long enough to park without shunting?

The shelter pattern this footprint could equally be arranged for is a coach bay combined with a finished room or loft used by people: the finished area is entered through the vehicle bay, which makes it an extension of the garage rather than a room. The vehicle line, a bench run with standing depth, and clear wall for storage that the vehicle does not block.

Because 27 feet clears the 12 feet this platform treats as usable, the end of the run is a room rather than a gap: 810 square feet for a bench and parts zone along one wall, positioned so it stays reachable with the coach inside. An empty building looks generous and a working one rarely does; plan against the working state.

Spare width is the more valuable of the two leftovers here: a continuous 12-foot strip beats the same area stranded at the end of the run, because it touches every position along the way. Ground conditions and drainage decide the floor before the frame does.

At 1.17:1 the plan is close enough to square that neither width nor depth is doing the arguing; what decides the layout here is where the openings go, because no proportion is forcing a direction on the floor. Spent as a square 32 by 32 instead, the same 1,050 sq ft would stand 1 service bays across rather than 1, and would trade this plan's length for parallel access. That is the width-against-depth decision this footprint has already made. At this scale the building is usually operated by one or two people who know where everything is, so the plan can be loose and the doors matter more than the divisions. The longest internal travel on a 30 by 35 plan is about 46 ft corner to corner, and the shortest useful one is the 30 ft cross-run. For a a coach bay with a working area kept for maintenance on the vehicle that matters where rv service bay sits, because shortening the 30 ft run to serve it lengthens every trip along the 35 ft dimension. Vehicle height including roof equipment is measured rather than estimated before a door is specified. That movement pattern, not the 1,050-square-foot total, is what decides whether the leftover 27 feet is useful here.

The estimate at 30x35 moves with four computed quantities: 1,050 square feet of floor, 130 feet of perimeter, 1,820 square feet of wall and 1,082 square feet of roof. Everything else is site and specification. What the building holds in its busiest week is the honest brief; the rest of the year is slack.

Proportion drives cost here as much as size does: 130 ft of wall around 1,050 sq ft is 0.124 ft of wall per enclosed square foot, and a squarer plan of the same area would carry less. What moves the figure further on a a coach bay with a working area kept for maintenance on the vehicle is the fit-out rv service bay implies, along with framed openings and the height chosen for the 30 ft span.

• the height needed to clear a tall vehicle with a margin
• column spacing along the lane
• anchoring for a tall open structure
• the approach and pad the vehicle drives on

Span drives headroom at 30x35: 30 feet of width on a 3:12 pitch puts 17.8 feet over the middle and 14 feet at the walls, so where a tall item stands matters as much as how tall it is. A leftover strip earns its place only when something is deliberately put in it; otherwise it is circulation with a nicer name.

Height covers the coach and, where roof work is intended, safe access above it. Access provisions are engineered for the specific arrangement.

• 10x10 holds the same 0 service bays but changes the leftover depth by -23 feet, which is where the difference is actually felt.
• 10x12 holds the same 0 service bays but changes the leftover depth by -19 feet, which is where the difference is actually felt.
• 12x16 holds the same 0 service bays but changes the leftover depth by -15 feet, which is where the difference is actually felt.

Because this footprint is planned as a coach bay with a working area kept for maintenance on the vehicle, the useful next reads are different from the ones a differently shaped rv carport suggests: rv service bay, bench side width, personnel door access.