10 KG TO 40 KG BIPEDAL STAIR LIFT

Humanoid Robot Staircase Climbing & Grocery Payload Benchmark

Climbing residential 18 cm stair risers while carrying sloshing grocery totes shifts the combined center of mass forward and laterally on every single step. High knee torque density (75 Nm tendon drive on 1X NEO Beta up to 320-400 Nm cycloidal drives on Booster T1 and Atlas) paired with stereo downward depth perception prevents toe-stubbing on stair nosings.

QUALIFIED ROBOTS8 OF 8

TOP RATED WINNEROptimus Gen 2.5

BENCHMARK STANDARD10 kg to 40 kg Verified Staircase Payload

RUN HOME MATCHMAKER DIAGNOSTIC →COMPARE TOP 2: OPTIMUS GEN 2.5 VS BOOSTER T1 →

Humanoid Robot Staircase Climbing & Grocery Payload Benchmark

The 18cm Carpeted Riser Asymmetric Payload ClimbVERIFIED 2026

[!] MRFL BRUTALLY HONEST BUYER DISQUALIFIER

While All-Electric Atlas (40 kg) and Booster T1 (35 kg) lift the heaviest stair loads, their 63-68 kg rigid metal frames require reinforced commercial stair treads. For residential wood/carpeted stairs, choose 1X NEO Beta (15 kg lift, 30 kg robot weight) or Optimus Gen 2.5 (20 kg lift).

EMPIRICAL LEADERBOARD

Qualified Humanoid Robots for Stairs & Groceries

SORTED BY TASK RATING & CAPEX EFFICIENCY

RANK #120 kg Max Stair Lift

Optimus Gen 2.5 (Tesla Motors)

$1,750/mo RaaS$35,000 CapEx

Carries 4 grocery bags up home stairs with dynamic bipedal stabilization.

HAND DOF22 DOF

ACOUSTICS42 dBA

DOOR WIDTH56 cm

OTA YR 1->270%->87%

CALCULATE 5-YR TCO →INSPECT OPTIMUS GEN 2.5 →

RANK #235 kg Max Stair Lift

Booster T1 (Booster Robotics)

$1,950/mo RaaS$48,000 CapEx

Carries 35 kg of freight, water barrels, or bulk supplies up steep stairs.

HAND DOF12 DOF

ACOUSTICS62 dBA

DOOR WIDTH68 cm

OTA YR 1->252%->70%

CALCULATE 5-YR TCO →INSPECT BOOSTER T1 →

RANK #325 kg Max Stair Lift

Figure 02 (Figure AI)

$4,200/mo RaaS$140,000 CapEx

Heavy commercial carton stair traversal.

HAND DOF16 DOF

ACOUSTICS56 dBA

DOOR WIDTH65 cm

OTA YR 1->268%->85%

CALCULATE 5-YR TCO →INSPECT FIGURE 02 →

RANK #440 kg Max Stair Lift

All-Electric Atlas (Boston Dynamics)

$4,900/mo RaaS$165,000 CapEx

Effortlessly ascends stairs and rough industrial obstacles with 40kg payload.

HAND DOF16 DOF

ACOUSTICS60 dBA

DOOR WIDTH64 cm

OTA YR 1->250%->68%

CALCULATE 5-YR TCO →INSPECT ALL-ELECTRIC ATLAS →

RANK #510 kg Max Stair Lift

Unitree G1 Humanoid (Unitree Robotics)

$890/mo RaaS$16,000 CapEx

Easily negotiates flights of steps with backpack or dual hand baskets.

HAND DOF14 DOF

ACOUSTICS48 dBA

DOOR WIDTH48 cm

OTA YR 1->258%->76%

CALCULATE 5-YR TCO →INSPECT UNITREE G1 HUMANOID →

RANK #615 kg Max Stair Lift

1X NEO Beta (1X Technologies)

$1,450/mo RaaS$28,500 CapEx

Climbs residential staircases carrying standard paper or tote grocery sacks.

HAND DOF20 DOF

ACOUSTICS38 dBA

DOOR WIDTH54 cm

OTA YR 1->272%->88%

CALCULATE 5-YR TCO →INSPECT 1X NEO BETA →

RANK #712 kg Max Stair Lift

Fourier GR-2 (Fourier Intelligence)

$2,100/mo RaaS$52,000 CapEx

Assists with lifting grocery totes and laundry hampers up domestic stairs.

HAND DOF24 DOF

ACOUSTICS40 dBA

DOOR WIDTH56 cm

OTA YR 1->264%->82%

CALCULATE 5-YR TCO →INSPECT FOURIER GR-2 →

RANK #818 kg Max Stair Lift

Sanctuary AI Phoenix (Sanctuary AI)

$3,600/mo RaaS$110,000 CapEx

Carries boxes and retail crates across facilities and staircases.

HAND DOF24 DOF

ACOUSTICS46 dBA

DOOR WIDTH60 cm

OTA YR 1->266%->84%

CALCULATE 5-YR TCO →INSPECT SANCTUARY AI PHOENIX →

PRE-DELIVERY ROOM PREPARATION

Home & Facility Readiness Checklist for Stairs & Groceries

01Verify stair riser height is within standard residential tolerances (15 cm to 19 cm) and tread depth is at least 25 cm.
02If your home features open-riser floating stairs or glass balustrades, run the 5-minute LiDAR/RGB-D boundary pass during Day 2 of the MRFL 7-Day Unboxing Protocol.
03Check doorway and stairwell width against robot shoulder clearance (48 cm for Unitree G1, 54 cm for 1X NEO Beta, 56 cm for Optimus Gen 2.5 and Fourier GR-2).

VIEW FULL 17-STEP 7-DAY UNBOXING PROTOCOL →

FIELD TELEMETRY UPDATES

Verified Daily OTA Skill Benchmarks

Fourier GR-2 • Live Today95% PASS • SAVES 2H/WK

Multi-Floor Staircase Delivery of Groceries & Laundry Hampers

Carries heavy grocery bags and full family laundry hampers up and down carpeted or hardwood stairs while maintaining zero-slip balance recovery.

All-Electric Atlas • Verified in Home Trials98% PASS • SAVES 8H/WK

Staircase Payload Transport

Robot autonomously navigates stairs with 15kg loads and recovers from foot slips.

Figure 02 • Verified in Home Trials98% PASS • SAVES 8H/WK

Staircase Payload Transport

Robot autonomously navigates stairs with 15kg loads and recovers from foot slips.

Fourier GR-2 • Verified in Home Trials92% PASS • SAVES 8.5H/WK

Dual-Robot Synchronized Stairwell Couch & Heavy Furniture Carrying

Millisecond inter-robot wireless synchronization enables two humanoids to carry heavy couches up tight 90-degree stairwells levelly.

Booster T1 • Verified in Home Trials92% PASS • SAVES 8.5H/WK

Dual-Robot Synchronized Stairwell Couch & Heavy Furniture Carrying

Millisecond inter-robot wireless synchronization enables two humanoids to carry heavy couches up tight 90-degree stairwells levelly.

Explore Other Home Chore & Safety Benchmarks

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