CSI MasterFormat Divisions
General & Site (00-09)
00
Procurement and Contracting
01
General Requirements
02
Existing Conditions
03
Concrete
04
Masonry
05
Metals
06
Wood, Plastics, Composites
07
Thermal & Moisture Protection
08
Openings
09
Finishes
Specialties (10-14)
10
Specialties
11
Equipment
12
Furnishings
13
Special Construction
14
Conveying Equipment
MEP Systems (21-28)
21
Fire Suppression
22
Plumbing
23
HVAC
25
Integrated Automation
26
Electrical
27
Communications
28
Electronic Safety & Security
Site & Infrastructure (31-35)
31
Earthwork
32
Exterior Improvements
33
Utilities
34
Transportation
35
Waterway & Marine
Construction Calculator
Essential field calculations at your fingertips
🏗️ Concrete Volume
📐 Feet-Inches to Decimal
📊 Slope/Grade Calculator (ADA Check)
📐 Right Triangle (Pythagorean)
Decimals of a Foot
Complete fractional inch to decimal feet conversion
Tap image to zoom • Comprehensive conversion reference
Angle Types & Geometry
Essential geometric principles for construction
Reference for right, acute, obtuse, complementary & supplementary angles
Volume Calculation Formulas
Essential formulas for 3D shape volumes
Cube, Sphere, Cylinder, Cone, Pyramid, Ellipsoid formulas
Key: V = volume | h = height | π = 3.141593 | r = radius | B = area of base
Area & Geometry Formulas
Essential formulas for 2D shape areas
Circle, Triangle, Trapezoid, Parallelogram & Irregular Shape formulas
Key: A = area | C = circumference | r = radius | θ = angle | π = 3.141593
ADA Requirements
Complete ADA compliance reference with professional diagrams
Door Clearance Requirements
32" minimum clear opening | 36" preferred
Wheelchair Maneuvering at Door
60" minimum turning radius | 18" latch side clearance
Toilet Clearance & Grab Bar Elevation
17"-19" toilet seat height | 33"-36" grab bar height AFF
ADA Compliant Grab Bar Installation
1.25"-1.5" diameter | 1.5" wall clearance | 33"-36" AFF
Quick Reference Tables
Door & Passage
Clear Width
32" min (36" preferred)
Door Force
5 lbs max
Hardware Height
34" - 48" AFF
Clearance
18" latch, 60" front
Threshold
1/2" max (1/4" pref)
Corridor
36" min clear
Reach Ranges
Forward Reach
15" - 48"
Side Reach
15" - 48"
Toilet Seat
17" - 19" AFF
Sink Rim
34" max
Mirror Bottom
40" max AFF
Grab Bar
33" - 36" AFF
Door Frame Rough Openings
Hollow Metal - Welded
Door + 4" × Height + 2"
3'-0" × 7'-0"
3'-4" × 7'-2"
3'-0" × 8'-0"
3'-4" × 8'-2"
4'-0" × 7'-0"
4'-4" × 7'-2"
6'-0" × 7'-0" (Pair)
6'-4" × 7'-2"
6'-0" × 8'-0" (Pair)
6'-4" × 8'-2"
Knock Down (KD)
Door + 2.5" × Height + 2.5"
3'-0" × 7'-0"
3'-2.5" × 7'-2.5"
4'-0" × 7'-0"
4'-2.5" × 7'-2.5"
Wood Frames
Door + 2.5" × Height + 2.5"
2'-6" × 6'-8"
2'-8.5" × 6'-10.5"
3'-0" × 6'-8"
3'-2.5" × 6'-10.5"
3'-0" × 7'-0"
3'-2.5" × 7'-2.5"
Masonry (4" Head)
Door + 4" × Height + 4.5"
3'-0" × 7'-0"
3'-4" × 7'-4.5"
4'-0" × 7'-0"
4'-4" × 7'-4.5"
6'-0" × 7'-0" (Pair)
6'-4" × 7'-4.5"
Lean Construction
6 Lean Tenets
- Value: Customer perspective
- Value Stream: Map & eliminate waste
- Flow: Continuous work
- Pull: Demand-driven
- Perfection: Continuous improvement
- Respect: Empower team members
8 Wastes - DOWNTIME
D
Defects: Rework & repairs
O
Overproduction
W
Waiting: Idle time
N
Non-Utilized Talent
T
Transportation
I
Inventory: Excess materials
M
Motion: Unnecessary movement
E
Excess Processing
5S Methodology
Workplace organization system for efficient, organized, and safe work environment.
Sort
Separate necessary from unnecessary. Remove clutter and non-essential items.
Straighten
Organize for easy access. Create designated locations for everything.
Shine
Clean and inspect regularly. Promote safety and quality through cleanliness.
Systemize
Establish standards. Create consistent methods everyone follows.
Sustain
Make 5S a habit. Monitor and reinforce for long-term success.
Benefits
- Improved safety & reduced accidents
- Increased productivity & efficiency
- Better quality control
- Enhanced employee morale
- Reduced waste
Equipment Heights
Fire Extinguishers
Surface Mount
48" - 54" AFF
Semi-Recessed
48" - 54" AFF
ADA Compliant
48" max AFF
Electrical Outlets
Standard
12" - 18" AFF (15" typical)
Kitchen Counter
42" - 48" AFF
ADA Compliant
15" min - 48" max
Garage
48" AFF
Light Switches
Standard
48" AFF
ADA Compliant
48" max (42"-44" pref)
Commercial
42" - 48" AFF
Note: AFF = Above Finished Floor | Always verify local code requirements