Sheet AE-103
A/E + MEP Firms

Design assist
from concept
to permit set.

We sit next to your MEP team during preconstruction. Hazard classification, water supply, system selection, and rough budget locked in before the contractor set begins. Fewer surprises in CD, fewer redesigns at bid.
Open RFQ ↓
01 / Basis of Design

Sign off on
the BOD before
CD begins.

The questions that drive sprinkler cost get answered during DD, not discovered during bid: hazard classification, supply margin, coverage strategy. The bidding contractor inherits a documented basis, not a set of inferences.

Excerpt · representative project

Basis of Design · Draft ExcerptSht BOD-01 · Rev A
Hazard Classification
OccupancyOH Group 2
ReferenceNFPA 13 (2022) §4.3.1.2
Design Criteria
Density0.20 gpm/ft²
Design Area1,500 ft²
Hose Allowance250 gpm
Supply Margin10 psi @ 200 gpm
System
TypeWet · Grooved Steel
Coverage / Head130 ft² max
Temp Rating155° F · standard
Water Supply · Hyd. Test 2025.03.14
Static72 psi
Residual56 psi @ 1,200 gpm
Flow Point14" main · NW corner
Code References
NFPA 132022 edition
IFC §9032021 edition
AHJ AmendmentsLocal · Chapter 27
Coverage Plan · OH Group 2Scale 1/8" = 1'-0"
6'-0"12'-0"12'-0"6'-0"6'-0"12'-0"6'-0"N
Pendant Sprinkler · K-5.6 · 130 ft² coverage · 12'-6" max spacing per NFPA 13
02 / What You Get

A set the
bidders trust,
not argue.

Drawings and specifications that anticipate the contractor's questions. Cleaner RFIs, tighter bids, fewer scope gaps to argue at award.

Lacuna, LLC · under your firm's stamp

03 / How We Fit

An extension of
your MEP bench.

You carry the basis of design. We carry the sprinkler depth. The contractor builds from a coordinated set.

04 / ServicesSprinkler scope only · no fire alarm · no smoke control
01

Design Assist & Basis of Design

Hazard classification, water supply analysis, system selection, and a documented BOD that travels with the set into CD.

NFPA 13Revit
02

Permit & Bid Documents

Sprinkler drawings and specifications coordinated with your MEP set, ready to issue under your stamp.

AutoSPRINKRevit
Sheet RFQ · 24H Turnaround

Send us
the set.

Scope, delivery date, and quote back inside 24 hours.

Direct · support@lacunafire.com
Phone · 405-237-8955
Files stay confidential. No obligation.